know-it-all
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.
Origin of know-it-all
1Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use know-it-all in a sentence
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.
Confessions of a Rom-Com Writer: Liz Tuccillo Talks ‘Sex and the City,’ ‘Take Care,’ and More | Kevin Fallon | December 5, 2014 | THE DAILY BEASTIn her Twitter profile bio, writer Liz Tuccillo calls herself a “relationship know-it-all.”
Confessions of a Rom-Com Writer: Liz Tuccillo Talks ‘Sex and the City,’ ‘Take Care,’ and More | Kevin Fallon | December 5, 2014 | THE DAILY BEASTFranklin was a printer, scientist, revolutionary, ambassador and all around know-it-all.
The Struggles of Benjamin Franklin’s Sister Jane | Annette Gordon-Reed | November 21, 2013 | THE DAILY BEASTHe was kind of a know-it-all, talked with a lot of authority on different subjects.
Whitey Bulger’s Women: Inside the Terror and Glamour of His Ex-Girlfriends | T.J. English | June 11, 2012 | THE DAILY BEAST
Lewis was one of these stuck-up, know-it-all johnnies, not long breeched.
Two on the Trail | Hulbert Footner"I've a good mind not to tell you, Mr. know-it-all," exclaimed Johnny Chuck.
The Adventures of Reddy Fox | Thornton W. BurgessNone of the new girls appeared to be inclined toward a “know-it-all” attitude, for which Jane was grateful.
Jane Stewardess of the Air Lines | Ruthe S. WheelerThey couldn't fool me with their slick off-the-cuff ready-made know-it-all responses!
The Capgras Shift | Sam Vaknin"She is—and she's just what you need," said Sue, with that know-it-all smile of hers.
The Harbor | Ernest Poole
Other Idioms and Phrases with know-it-all
see know all the answers.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
Browse