Thesaurus

know-it-all

noun

Synonyms of know-it-all

informal + disapproving a person who talks and behaves like someone who knows everything
  • My neighbor is a real know-it-all, always telling me what to do.

Synonyms & Near Synonyms for know-it-all

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Time Traveler for know-it-all

Time Traveler

The first known use of know-it-all was in 1873

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Thesaurus Entries Near know-it-all

knowingness

know-it-all

know-it-alls

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Cite this Entry

“Know-it-all.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/know-it-all. Accessed 30 Jul. 2021.

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Nglish: Translation of know-it-all for Spanish Speakers

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