View synonyms for know-it-all

know-it-all

[ noh-it-awl ]

Phonetic (Standard)IPA

noun

a person who acts as though they know everything and who dismisses the opinions, comments, or suggestions of others.

of or characteristic of a person who acts as though they know everything and who dismisses the opinions, comments, or suggestions of others.

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First recorded in 1930–35

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He made an easy target, the know-it-all liberal egghead who demeaned the wisdom of the American people.

On her own path, though, the “relationship know-it-all” is embracing her own, different natural progression.

In her Twitter profile bio, writer Liz Tuccillo calls herself a “relationship know-it-all.”

Franklin was a printer, scientist, revolutionary, ambassador and all around know-it-all.

He was kind of a know-it-all, talked with a lot of authority on different subjects.

Lewis was one of these stuck-up, know-it-all johnnies, not long breeched.

"I've a good mind not to tell you, Mr. Know-it-all," exclaimed Johnny Chuck.

None of the new girls appeared to be inclined toward a “know-it-all” attitude, for which Jane was grateful.

They couldn't fool me with their slick off-the-cuff ready-made know-it-all responses!

"She is—and she's just what you need," said Sue, with that know-it-all smile of hers.

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

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