a person who pretends or appears to know a great deal
WordReference Random House Unabridged Dictionary of American English © 2025
know-all
(nō′ôl′),USA pronunciation n. [Informal.]
- Informal Termsa know-it-all.
- 1880–85
Collins Concise English Dictionary © HarperCollins Publishers::
'know-all' also found in these entries (note: many are not synonyms or translations):