- informal a person or thing of great beauty, quality, size, etc
WordReference Random House Unabridged Dictionary of American English © 2026
stun•ner
(stun′ər),USA pronunciation n.
- a person or thing that stuns.
- Informal Termsa person or thing of striking excellence, beauty, achievement, etc.
- stun + -er1 1840–50
Collins Concise English Dictionary © HarperCollins Publishers::
stunner /ˈstʌnə/ n