Synonyms of assertive

1 Syllable
firm, sure
2 Syllables
seton, pushier, certain, pushful, pushy, valiant, forward
3 Syllables
demanding, questionless, insistent, emphatic, decided, confident, lion-hearted, wrong-headed, commanding, assured, forcible, strong-willed, militant, dogmatic, unruly, dominant, forceful
4 Syllables
absolute, domineering, decisive, perseverant, self-assured, overweighing, overbearing, gladiatorial, peremptory, assertory, indocile, positive, self-confident
5 Syllables
overbalancing, opinionated