know-it-all

noun
\ ˈnō-ət-ˌȯl How to pronounce know-it-all (audio) \

Definition of know-it-all

: one who claims to know everything also : one who disdains advice

Other Words from know-it-all

know-it-all adjective

First Known Use of know-it-all

1873, in the meaning defined above

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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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Cite this Entry

“Know-it-all.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/know-it-all. Accessed 11 Aug. 2020.

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More Definitions for know-it-all

know-it-all

noun
How to pronounce know-it-all (audio)

English Language Learners Definition of know-it-all

informal + disapproving : a person who talks and behaves like someone who knows everything

know-it-all

noun
\ ˈnō-ət-ˌȯl \

Kids Definition of know-it-all

: a person who always claims to know everything

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More from Merriam-Webster on know-it-all

Thesaurus: All synonyms and antonyms for know-it-all

Rhyming Dictionary: Words that rhyme with know-it-all

Spanish Central: Translation of know-it-all

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

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