know-it-all
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
In a 2015 biography, author Ashlee Vance described Musk as "a confrontational know-it-all" with an "abundant ego".
From BBC • Jun. 4, 2026
Volker Beck, president of the German-Israeli Society, labelled Steinmeier's comments on the war "grossly inappropriate" and said they displayed a "smug know-it-all attitude".
From Barron's • Mar. 24, 2026
The idea was to put to rest any worry that she might parade in like a know-it-all.
From The Wall Street Journal • Oct. 30, 2025
Of course, being a kid is full of trial and error, especially when you’re a know-it-all.
From Salon • Mar. 2, 2025
Hermione was now refusing to speak to Harry and Ron, but she was such a bossy know-it-all that they saw this as an added bonus.
From "Harry Potter and the Sorcerer's Stone" by J.K. Rowling
