know-it-all

[noh-it-awl] /ˈnoʊ ɪtˌɔl/
noun
1.
a person who acts as though he or she knows everything and who dismisses the opinions, comments, or suggestions of others.
adjective
2.
of or characteristic of a know-it-all.
Origin
1930–35
Slang definitions & phrases for know it all

know-it-all

noun

A person who pretends to virtual omniscience; bigmouth, smart-ass : Just what we need around here, another know-it-all (1895+)


Dictionary of American Slang
Copyright © 1986 by HarperCollins Publishers
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Idioms and Phrases with know it all

know it all

see know all the answers.

The American Heritage® Dictionary of Idioms by Christine Ammer.
Copyright © 1997. Published by Houghton Mifflin.
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Difficulty index for know it all

Few English speakers likely know this word

Tile value for know

11
12
Scrabble Words With Friends

Quotes with know it all