know-it-all

[ noh-it-awl ]
/ ˈnoʊ ɪtˌɔl /
SEE SYNONYMS FOR know-it-all ON THESAURUS.COM

noun

a person who acts as though he or she knows everything and who dismisses the opinions, comments, or suggestions of others.

adjective

of or characteristic of a know-it-all.

Origin of know-it-all

First recorded in 1930–35

Words nearby know-it-all

know the score, know where one stands, know which side of one's bread is buttered, know-all, know-how, know-it-all, know-nothing, know-nothings, knowable, knowe, knowed

Words related to know it all

haughty, presumptuous, imperious, pretentious, aloof, cocky, cavalier, smug, vain, pompous, bossy, selfish, egotistical, egocentric, self-absorbed, self-indulgent, self-assured, fearless, self-reliant, poised

Idioms and Phrases with know it all

know it all

see know all the answers.