Cocky

a.

1.

Pert.

Adj.

1.

cocky - overly self-confident or self-assertive; "a very cocky young man"

aggressively self-confident, arrogant, audacious, biggety, bluff, bold, brash, brassy, brazen, bumptious, challenging, cheeky, chesty, chutzpadik, cocksure, conceited, contemptuous, crusty, daring, defiant, defying, derisive, disdainful, disregardful, disrespectful, egotistical, facy, flip, flippant, fresh, gally, gratuitous, greatly daring, haughty, immodest, impertinent, impudent, insolent, know-it-all, malapert, nervy, obtrusive, overconfident, overwise, peacockish, peacocky, perk, perky, pert, prideful, proud, puffed up, regardless of consequences, rude, sassy, saucy, self-conceited, self-important, self-opinionated, smart, smart-alecky, smart-ass, stuck-up, swelled-headed, uncalled-for, vain, wise-ass