WordReference Random House Unabridged Dictionary of American English © 2026
un•suit•a•ble
(un so̅o̅′tə bəl),USA pronunciation adj.
un′suit•a•bil′i•ty, un•suit′a•ble•ness, n.
un•suit′a•bly, adv.
- not suitable;
inappropriate;
unfitting;
unbecoming.
- un-1 + suitable 1580–90
un•suit′a•bly, adv.