- incapable of being denied or disputed: undeniable evidence of arson.
- not open to refusal: an undeniable call for help.
- unquestioned as to quality, merit, etc.; indisputably good: undeniable artistic talent.
- in an unquestionable or obvious manner; irrefutably
- unquestionably or obviously true
- of unquestionable excellencea man of undeniable character
- unable to be resisted or denied
adj.1540s, from un- (1) “not” + deny + -able. Related: Undeniably.