Cocky synonyms such as boastful, arrogant, and blustering. Cocky is an adjective, and its antonyms are modest and diffident. Additionally, here are 34 synonyms, related words, and verbs for cocky.
arrogant, blustering, boastful, bold, brash, cocksure, conceited, disdainful, egotistical, forward, haughty, high and mighty, hubristic, insolent, lofty, lordly, opinionated, overconfident, overweening, patronizing, pompous, presumptuous, proud, self-assertive, self-important, smug, supercilious, swollen-headed, throwing one's weight about, throwing one's weight around, uppish, vain, and vainglorious.