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.

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

I have been a know-it-all Dodger fan since the late 1950s and after last season I thought, and hoped, Clayton Kershaw would retire.

From Los Angeles Times • Sep. 20, 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