Assertive synonyms such as authoritative, assaultive, and assured. Assertive is an adjective, and its antonyms are retiring, passive, and submissive. Additionally, here are 26 synonyms for assertive and words similar to it.
Assaultive, assured, authoritative, believing in oneself, bold, bullish, commanding, confident, decisive, determined, dominant, domineering, feisty, firm, forceful, insistent, not backward in coming forward, positive, pushful, pushy, self-assertive, self-assured, self-confident, self-possessed, and strong-willed.