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What does 'assertive' really mean? Scientific definition of assertiveness, difference from aggression and passivity, 7 concrete examples of assertive communication at work and how to develop this essential soft skill in 2026.
"Be more assertive." You have probably heard this phrase countless times in annual reviews, in manager feedback, or in personal development books. But what does 'assertive' really mean? And how do you actually behave assertively at work without coming across as aggressive or as a pushover?
At Rising Up, assertiveness is part of the scientific framework of the 18 core skills we have been measuring for more than 10 years with our partners in cognitive sciences (CNRS, ENS-PSL, EHESS). Under the name "assertive influence", it belongs to the leadership and collaboration family, one of the most sought-after soft skills in 2026 by recruiters.
In this article, you will learn: - The exact meaning of the word "assertive", its etymology and scientific definition - The difference between assertiveness, aggression and passivity (spoiler: it's not just about tone) - 7 concrete examples of assertive communication in professional situations - How to develop assertiveness using methods grounded in cognitive sciences - How to measure assertive influence in a recruitment or talent development context
The word "assertive" comes from the Latin assertio, meaning "affirmation, declaration". Etymologically, being assertive means stating your point of view with clarity and confidence.
But in modern psychology, the meaning has evolved. Assertive doesn't simply mean "someone who states"; it means communicating your needs, opinions and limits in a direct, respectful and non-aggressive way.
Based on the foundational work of psychologist Andrew Salter (1949) and later Joseph Wolpe and Arnold Lazarus (1966), assertiveness is defined as:
The ability to express your thoughts, emotions and needs honestly and directly, while respecting the rights and opinions of others.
In our framework of 18 core skills, we adopted the following definition for assertive influence:
Convincing without aggression while defending your point of view.
This definition emphasizes three key dimensions: 1. Convincing: assertiveness has a goal, getting others to endorse an idea 2. Without aggression: respecting the other person is fundamental 3. Defending your point of view: assertiveness is not passive neutrality
Many people confuse assertiveness with other communication styles. Here are the 3 most frequent pitfalls.
Aggression aims to impose your point of view by denying the other person's. Assertiveness aims to express your point of view while acknowledging the other person's.
Aggressive example: "Your presentation is bad, redo it." Assertive example: "I have identified 3 points that could be clearer in your presentation. I'll share them with you, and you tell me what you think?"
Passivity means withdrawing to avoid conflict. Assertiveness means clearly expressing your position even when it is uncomfortable.
Passive example: "No no, that works for me, let's do it your way." (when in reality it doesn't work) Assertive example: "I understand your proposal. However, I have a concern about X. Can we discuss it?"
Manipulation uses indirect techniques (guilt-tripping, emotional blackmail, flattery) to get what it wants. Assertiveness is transparent: it clearly says what it wants and why.
Manipulative example: "Well, if you don't want to help me on this project, fine, I'll figure it out on my own as usual..." Assertive example: "I need your expertise on this project. Can you give me 2 hours this week?"
Here are 7 concrete workplace situations where assertiveness makes a difference, with wording you can use directly.
Context: your manager asks you to take on a new project when you are already overloaded.
Assertive wording:
"I understand the importance of this project and I'm flattered you thought of me. However, I'm currently at 100% capacity on projects A and B, with deadlines next week. If I take this one on, I risk delivering poorly on all three. What should we prioritize together?"
Why it's assertive: acknowledgment of context, clear presentation of facts, openness to dialogue, no forced "yes" and no blunt "no".
Context: a colleague has delivered work below the team's standards.
Assertive wording:
"I wanted to share some feedback on the report you sent yesterday. In the financial section, I noticed 3 figures that seem to diverge from the raw data. Can you double-check them before the client presentation?"
Why it's assertive: factual, precise, action-oriented, no judgment of the person.
Context: leadership proposes an approach you consider risky.
Assertive wording:
"I hear your proposal and I understand the logic. However, based on our experience with client Y, I see a significant risk on point Z. May I present an alternative in 3 minutes?"
Why it's assertive: validation of the other's point of view, factual argumentation, explicit request for speaking time.
Context: a client requests a change out of scope just before delivery.
Assertive wording:
"I understand this change feels urgent to you. However, it falls outside the initial scope and will delay delivery by 5 days. Would you prefer that I prepare an additional quote, or should we stick to the initial scope?"
Why it's assertive: reformulation, exposing consequences, explicit choice given to the client.
Context: annual review, you believe you deserve a raise.
Assertive wording:
"Over the past 18 months, I have taken on X, Y and Z, with the following results: A, B, C. These responsibilities go beyond the scope of my initial role. I would like to discuss a salary adjustment or a change to my job description."
Why it's assertive: fact-based, positions a clear ask, opens the dialogue.
Context: a colleague systematically interrupts you in meetings.
Assertive wording:
"[Name], I noticed we interrupted each other several times in the meeting this morning. I'd like us to get into the habit of letting each other finish our sentences before jumping in. Does that work for you?"
Why it's assertive: factual observation, clear request, no accusation of intent.
Context: your team agrees on a method you believe is flawed.
Assertive wording:
"I understand the consensus, but I see a significant methodological issue. According to [source or experience], our approach X risks biasing the results. Can we take 10 minutes to explore an alternative before moving forward?"
Why it's assertive: acknowledges the consensus, argues factually, proposes a concrete action.
Assertiveness is not a fixed personality trait, it is a trainable competency. Among the historical methods referenced in behavioural psychology, one of the best known is the DESC method, formalised by Sharon and Gordon Bower in 1976. It offers a simple 4-step framework to formulate a request or refusal without aggression or passivity.
DESC is a 4-step acronym:
| Step | Meaning | Question to ask yourself |
|---|---|---|
| D | Describe the facts objectively | What are the observable facts? |
| E | Express your feelings or point of view | What does this make me feel / what do I think? |
| S | Specify a concrete request | What am I asking for precisely? |
| C | Consequences expected | What will change if the request is accepted? |
Applied example: your boss regularly assigns you last-minute files. - D: "Over the past 3 months, you assigned me 4 urgent files with less than 24 hours' notice." - E: "This puts me under pressure and impacts the quality of my work on other files." - S: "I'm asking you to give me at least 48 hours' notice when a file comes in." - C: "That will allow me to reorganize my schedule and deliver higher-quality work."
The Rising Up approach complements this kind of methodological framework with an objective in-situation measurement. The Soft Skill Scan evaluates assertive influence through reproducible contextualized scenarios, whereas classical methods (including DESC) remain focused on structuring a specific spoken exchange. Both approaches are complementary: training methods lay the foundations, the Rising Up measurement objectively tracks progress and enables certification.
Many recruiters use classic psychometric tests (PAPI, 16PF, Hogan, MBTI) to evaluate assertiveness. The problem? These tests rely on declarative self-assessment: the candidate checks what they think they are. Result: 80 to 90% of candidates declare themselves "assertive", which makes the data almost useless for a hiring decision.
Rising Up's approach is radically different. Our Soft Skill Scan, recognized as a breakthrough innovation by the European Innovation Council, measures assertive influence through:
The result is presented as strengths and points to watch for assertive influence, with a role compatibility score on a scale: Compatible / To explore in interview / Incompatible.
If you recruit and want to objectively evaluate assertiveness (and the other 17 core skills) of your candidates before the interview, discover the Rising Up Recruitment Pilot:
🎯 150 behavioral assessments over 8 weeks, on candidates for your 5 targeted positions
🎯 The CoreSkills AI analysis of your 5 job descriptions (acquired for life, even if you stop mid-course)
🎯 €3,000 excl. tax paid in one go at signature, valid until September 30, 2026 (then €4,500 excl. tax)
🎯 Limited to 5 companies per month
A single avoided bad hire covers 10 times the cost of the pilot.
Being assertive at work means stating your point of view with clarity and confidence, while respecting the other person. It is not aggression (imposing), nor passivity (withdrawing), nor manipulation (going around). It is a measurable, trainable soft skill, and increasingly sought after in 2026 by recruiters, because it drives the quality of collective decisions.
At Rising Up, assertive influence is part of the 18 core skills in our scientific framework. It is measured through calibrated real-life scenarios, not through declarative self-assessment.
Send us a message 📩 at hello@risinguparis.com and we will organize a 15-minute demonstration for you within the week.
From recruitment At development skills, Rising Up provides reliable behavioral data to guide your HR and educational choices.
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