Know-it-allism

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The attitude of a know-it-all. uncountable

Synonyms

All synonyms
clever-cloggeryknow-it-allery

Etymology

From know-it-all + -ism.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.