Finding Your Voice: How Assertive Communication Can Strengthen Relationships and Boundaries

Finding Your Voice: How Assertive Communication Can Strengthen Relationships and Boundaries

Have you ever said “It's fine” when it really wasn't?

Agreed to something you did not want to do because saying no felt uncomfortable?

Stayed silent during a difficult conversation, only to replay everything you wished you had said hours later?

Or perhaps frustration has built up for so long that, when you finally spoke, it came out much more strongly than you intended.

Many people experience this.

Assertiveness is not something everyone learns naturally. For some of us, speaking up may have been encouraged from childhood. For others, keeping the peace, avoiding conflict or prioritising other people's feelings may have felt much safer.

The good news is that assertive communication is a skill that can be learned and practised.

In my work as a therapist, I often describe assertiveness not as becoming louder, tougher or more confrontational, but as learning to communicate from a position of equal worth:

My feelings and needs matter – and yours matter too.

That balance is at the heart of healthy assertiveness.

What is assertive communication?

Assertiveness means expressing your thoughts, feelings, needs and boundaries clearly and respectfully while recognising that the other person has rights, feelings and perspectives too.

It sits between two extremes.

At one end is passivity, where we may minimise ourselves to protect the relationship.

At the other is aggression, where we prioritise ourselves at the expense of the other person.

Assertiveness aims for something different:

respect for self and respect for others at the same time.

This can involve:

• saying what you mean clearly rather than expecting someone to guess

• asking for what you need

• respectfully disagreeing

• saying no

• setting or maintaining boundaries

• expressing uncomfortable feelings without attacking

• listening to another person's perspective without automatically abandoning your own

• negotiating when compromise is appropriate.

Assertiveness does not guarantee that another person will agree with us.

What it gives us is a healthier way of participating in the conversation.

Passive, aggressive and assertive communication

One way I sometimes explain these patterns is through three simple messages.

Passive communication: “You matter, I don't.”

When we communicate passively, we place another person's needs, preferences or feelings above our own.

We might stay quiet, apologise unnecessarily, agree when we disagree or say yes when we really want to say no.

Passivity can sometimes feel easier in the short term because it helps us avoid conflict.

But the cost can accumulate.

Repeatedly suppressing our needs can lead to frustration, resentment, stress and a sense that other people do not understand us.

The difficulty is that they may not understand because we have never clearly shown them what we need.

Aggressive communication: “I matter, you don't.”

Aggressive communication places our own needs and opinions above those of the other person.

This might involve shouting, intimidation, insults, interrupting, dismissing another person's perspective or trying to force an outcome.

Aggression can sometimes achieve short-term compliance, but it often damages trust and emotional safety.

There is an important distinction between being strong and being aggressive.

You can be firm without being frightening.

You can disagree without humiliating another person.

And you can set a boundary without needing to dominate the conversation.

Assertive communication: “I matter, and you matter.”

Assertiveness tries to preserve both.

It allows us to say:

“This is what I think.”

“This is how that affects me.”

“This is what I need.”

while remaining willing to hear:

“And this is your experience.”

Healthy communication is not always agreement.

Sometimes it is two people being able to disagree without either person disappearing                                           or overpowering the other.

What about passive-aggressive communication?

Passive-aggressive communication can develop when feelings are not expressed openly.

Someone may appear to agree on the surface while communicating frustration indirectly through sarcasm, withdrawal, procrastination, subtle criticism or deliberately not following through.

Sometimes resentment has been building for so long that a relatively small incident produces                      a surprisingly large reaction.

Underneath passive-aggressive behaviour there is often something that has not been said directly.

The challenge becomes learning to communicate the underlying message earlier:

“Actually, I'm not comfortable with that.”

“I disagree.”

“I can't take that on at the moment.”

“Something about this situation is bothering me and I'd like to talk about it.”

Direct communication may initially feel more uncomfortable, but over time it is usually easier for relationships than asking other people to interpret silence, hints or resentment.

Fight, flight – or flow?

Another useful way of thinking about communication is to consider what happens when we feel threatened or uncomfortable.

Imagine someone you care about raises their voice at you.

You might respond by fighting – raising your voice back.

You might respond through flight – withdrawing, shutting down or leaving without addressing the issue.

Or, when it is safe to do so, you might try to flow – remaining grounded enough to respond clearly and respectfully:

“I understand that you're angry, but I'm not comfortable being shouted at. I'm happy to continue this conversation when we can both speak calmly.”

That sounds straightforward when written on a page.

In real relationships, it can be much harder.

Why is assertiveness difficult for some people?

People sometimes assume that if they understand what assertiveness is, they should simply be able to do it.

But communication patterns often have a history.

Some people grew up in families where disagreement was welcomed and children were encouraged to express opinions.

Others may have learned very different rules:

Don't upset anyone.

Don't answer back.

Keep everyone happy.

Other people's needs come first.

Anger is dangerous.

If somebody is unhappy with you, you have done something wrong.

For someone with those experiences, setting a simple boundary can produce surprisingly intense anxiety or guilt.

The person may intellectually know they are allowed to say no while emotionally experiencing                       it as dangerous, selfish or disloyal.

This is why becoming assertive can involve more than memorising communication techniques.

Sometimes it means understanding the beliefs, relationship experiences and emotional responses that have made speaking up difficult in the first place.

Assertiveness and the nervous system

Difficult conversations do not happen only in our thoughts.

Our bodies participate too.

When we anticipate conflict, we may notice a racing heart, tight chest, shaking, a blank mind, tension or an urge to escape.

Some people become very verbal and reactive.

Others freeze and suddenly cannot find any words at all.

Then, two hours later, the perfect response arrives.

This does not necessarily mean you are “bad at communication”.

It may mean your nervous system was responding to the situation as threatening.

Part of learning assertiveness can therefore involve learning how to slow the interaction down enough to stay connected with yourself.

That might mean taking a breath before answering, asking for time to think, rehearsing                                                   an important conversation beforehand or saying:

“I want to talk about this, but I need a little time to organise my thoughts first.”

Taking time is not the same as avoiding the conversation.

Start by knowing what you actually need

It is difficult to communicate a boundary when we are not sure where the boundary is.

Before an important conversation, it can help to ask yourself:

What am I feeling?

What specifically is bothering me?

What do I need?

What am I asking the other person to do differently?

What am I willing – and not willing – to do?

Many people can identify what they don't want long before they can articulate what they do want.

Developing that clarity is part of assertiveness.

“I-statements”: a practical way to start

One of the most useful tools for developing assertive communication is the I-statement.

An I-statement allows you to describe your experience without immediately blaming or attacking the other person.

There are several levels you can use.

A simple two-part I-statement

I feel … when …

For example:

“I feel frustrated when I'm interrupted.”

“I feel uncomfortable when jokes are made about me in front of other people.”

Sometimes that is enough.

A three-part I-statement

You can add the impact:

I feel … when … because …

For example:

“I feel stressed when plans change at the last minute because I need time to organise my day.”

“I feel upset when you cancel our plans without letting me know because I have set that time aside for us.”

A four-part I-statement

Finally, you can add what you would prefer:

I feel … when … because … and I would like …

For example:

“I feel overwhelmed when I'm left to manage all the household tasks because I don't have enough time to complete everything. I'd like us to agree on how we can divide them more evenly.”

Or:

“I feel anxious when voices become raised during an argument because I find it difficult to think clearly. I'd like us to pause if either of us becomes too heated and come back to the conversation when we're calmer.”

The goal is not to find a magical formula that forces another person to respond well.

The value of the formula is that it helps you organise and communicate your experience clearly.

A small caution about “I feel”

One common trap is disguising an accusation as a feeling.

For example:

“I feel that you are selfish.”

That is not really a feeling. It is an evaluation of the other person.

Compare it with:

“I feel hurt when decisions are made without including me because I want to feel that my opinion is considered.”

The second version gives the other person considerably more information about your actual experience.

Assertiveness is also about listening

Assertive communication is sometimes misunderstood as learning how to speak more strongly.

But healthy assertiveness includes listening.

You can express your position clearly and still ask:

“How do you see it?”

“Have I understood you correctly?”

“What would work for you?”

Listening does not mean surrendering your boundary.

Understanding another person's perspective and agreeing with it are not the same thing.

Healthy relationships allow room for both.

Your body communicates too

Assertiveness is communicated not only through words.

Body language can reinforce or undermine what we are trying to say.

Helpful assertive body language might include:

• comfortable rather than intimidating eye contact

• an upright but relaxed posture

• an open body position

• a steady tone of voice

• facial expressions that fit what you are communicating.

You do not need to perform confidence perfectly.

If your voice shakes while you set an important boundary, the boundary still counts.

Learning to say no

For many people, one of the hardest assertiveness skills is simply saying:

“No.”

We can develop a habit of over-explaining:

“I'm really sorry, and normally I absolutely would, and I hope you don't think I'm being difficult, but…”

Sometimes an explanation is appropriate.

But you are not required to construct a legal defence every time you decline a request.

You might say:

“Thanks for asking, but I can't do that.”

“I'm not available that day.”

“That doesn't work for me.”

“I need to think about it before I commit.”

Or:

“No, I'm not comfortable with that.”

A respectful no is still respectful.

Some basic assertive rights

Learning assertiveness often involves giving ourselves permission to do things that we readily allow other people to do.

For example, you have the right to:

• have your own values and opinions

• express your feelings respectfully

• say that you do not know or do not understand something

• ask for help or information

• change your mind

• make mistakes and take responsibility for them

• use your time according to your priorities

• say no without automatically concluding that you are selfish.

But there is an equally important second half:

other people have these rights too.

Assertiveness is not a licence to demand that others meet every need.

You can ask.

They can say no.

They can ask.

You can say no.

Sometimes healthy relationships involve negotiation. Sometimes they involve accepting that two people genuinely want different things.

Expect discomfort when you change an old pattern

One of the hardest parts of becoming more assertive is that other people may notice.

If you have historically agreed to everything, saying no may surprise someone.

If you have always avoided disagreement, expressing an opinion may initially feel unnatural.

And sometimes people who benefited from your lack of boundaries may not immediately welcome the change.

That does not automatically mean your boundary is wrong.

It can help to begin with lower-stakes situations and practise consistently rather than attempting the most difficult conversation of your life first.

Assertiveness is a skill, and skills strengthen through repetition.

Assertiveness is not about controlling the outcome

This may be the most important distinction of all.

Assertive communication means taking responsibility for how you communicate.

It does not give you control over how another person responds.

You can communicate respectfully and someone may still be disappointed.

You can set a reasonable boundary and someone may still dislike it.

You can explain yourself perfectly and still be misunderstood.

Sometimes developing assertiveness means learning that another person's disappointment                        is uncomfortable – but survivable.

When assertiveness is not enough

There is an important exception to much of the advice in this article.

Assertiveness strategies assume there is enough safety in the relationship for communication and negotiation to occur.

If somebody uses intimidation, threats, coercion, stalking, violence, financial control or other forms of abuse, the problem is not simply a lack of communication skills.

In those circumstances, directly confronting the person or setting boundaries may sometimes increase risk.

Safety should take priority.

Support from an appropriate professional or specialist domestic and family violence service may be more important than trying to perfect an I-statement.

No communication technique can make another person choose to behave respectfully.

Finding your voice without losing connection

Assertiveness is not about winning conversations.

It is not about becoming confrontational.

And it is not about learning to say whatever you want without considering its impact.

At its healthiest, assertiveness says:

I am allowed to exist fully in this relationship – and so are you.

For some people, that means learning to speak more.

For others, it means learning to slow down, listen and make space for another perspective.

For many of us, it means moving between the two depending on the situation.

In therapy, assertiveness work can involve practical communication strategies, but it can also involve exploring why particular conversations feel so difficult, learning to recognise emotions and needs, developing boundaries, addressing fears of conflict or rejection, and practising new ways of responding.

You do not have to become fearless before you become assertive.

Sometimes finding your voice simply begins with one clear sentence:

“This matters to me, and I'd like to talk about it.”

References and further reading

Alberti, R. E., & Emmons, M. L. (2017). Your Perfect Right: Assertiveness and Equality in Your Life and Relationships (10th ed.). New Harbinger Publications.

Cornelius, H., & Faire, S. (2006). Everyone Can Win: Responding to Conflict Constructively. Simon & Schuster.

Dwyer, J. (1993). The Business Communication Handbook. Prentice Hall.

Giarratano, L. (2018). Managing Psychological Trauma.

Healthdirect Australia. (2026). Building and maintaining healthy relationships.

Healthdirect Australia. (2026). How to talk about your mental health concerns.

Linehan, M. M. (2015). DBT Skills Training Manual (2nd ed.). Guilford Press.

Speed, B. C., Goldstein, B. L., & Goldfried, M. R. (2018). Assertiveness training: A forgotten evidence-based treatment. Clinical Psychology: Science and Practice, 25(1), e12216.

This article provides general information and is not a substitute for individual mental health, relationship, medical or safety advice. If you are experiencing abuse or feel unsafe in a relationship, consider seeking specialist support.