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

He could come off as a know-it-all, and he tended to ramble when speaking.

From Salon • Sep. 9, 2025

He paused and replied, “If we’d been less know-it-all, less ‘we’re from Harvard, so we know how to run your country and you don’t,’ do I think our relations could have developed differently?

From Slate • Dec. 23, 2024

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