Synonyms to know-it-all

egocentric, Narcissus, braggart, compare, conceited, egocentristic, egoist, egoistic, egomaniacal, egotist, egotistic, egotistical, individualist, individualistic, narcissan, narcissine, narcissist, narcissistic, narcist, narcistic, no modest violet, self-absorbed, self-applauding, self-centered, self-conceited, self-indulgent, self-interested, self-loving, self-seeking, self-serving, selfish, smart aleck, stuck-up, swellhead, vainglorious, careerist, fortune hunter, hog, lone wolf, loner, monopolist, road hog, self-advancer, self-pleaser, self-seeker, self-server, temporizer, timepleaser, timeserver, tufthunter, obtrusive, aggressively self-confident, arrant, arrogant, audacious, biggety, blatant, bold, brazen, brazenfaced, bumptious, busy, chesty, cocky, cold, colorful, conspicuous, contumelious, cool, crude, disdainful, extravagant, familiar, flagrant, flaring, flaunting, forceful, forward, garish, gaudy, glaring, gorgeous, hanging out, hu