What is the meaning of know-it-all?

noun

  • Someone who thinks he knows everything and refuses to accept advice or information from others.
WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). know-it-all. Retrieved September 22, 2026, from http://smartdefine.org/know-it-all/definitions/1230684
ChicagoWordNet. 2010. "know-it-all" http://smartdefine.org/know-it-all/definitions/1230684 (accessed September 22, 2026).
HarvardWordNet 2010, know-it-all, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/know-it-all/definitions/1230684>.
MLAWordNet. "know-it-all" 23 October 2010. Web. 22 September 2026. <http://smartdefine.org/know-it-all/definitions/1230684>