unthinkable
(un-think-a-ble)
4 syllables
Definition
adjective. incapable of being conceived or considered
Example Sentence
It's unthinkable to commit a crime.
Synonyms
impossible; inconceivable; out of the question; unimaginable
Antonyms
cogitable; ponderable; conceivable; imaginable; presumable
Rhymes
- unsinkable
- unthinkable