know-it-all (noun) know-it-all: one who claims full knowledge
Sinonime: bald, baldheaded, beardless, clean-shaven, cue ball, depilated, egghead, glabrate, glabrescent, glabrous, shaved, shaven, shorn, skinhead,
smooth, smooth-faced, tonsured, whiskerless
Antonime: furry,
hairy, hirsute