know-it-all
English
Noun
know-it-all (plural know-it-alls)
- (chiefly US, derogatory) Someone who claims to be knowledgeable or an expert in something, obnoxiously dismissing the opinions, advice, suggestions, etc. of others.
- We had it all figured out, but this know-it-all marched in with "the correct way of solving it", leaving our experiment in shambles.
Derived terms
Translations
someone who obnoxiously claims to be knowledgeable on a subject
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