Synonyms of smart-alecky

1 Syllable
flip, bold, cool, pert, smart, rude, fresh, brash, wise
2 Syllables
brassy, nervy, brazen, bumptious, off-base, pushy, sassy, gally, flippest, lippy, arrant, saucier, saucy, cheeky, snotty, uppish, scoffing, snobby, boastful, perter, flippant, smartass, nervier, flipper, daring, galler, forward, blatant, pertest, smart-ass, sassier, cocky
3 Syllables
sardonic, snippety, impudent, immodest, insolent, overbold, out-of-line, unblushing, boldfaced, presuming, presumptuous, procacious, conceity, precocious, satiric, discourteous, familiar, unfilial, sarcastic, assuming, audacious, conceited, malapert
4 Syllables
unabashed, barefaced, contumelious, impertinent, assumptive, derisive, disrespectful, weisenheiming, hifalutin, self-applauding
5 Syllables
overconfident, self-aggrandizing