adj.
Pronunciation: ˌ ə n-di- ' n ī - ə -b ə l
Function: adjective
Date: 1547
1 : plainly true : INCONTESTABLE <an undeniable fact>
2 : unquestionably excellent or genuine <an applicant with undeniable references>
– un · de · ni · able · ness noun
– un · de · ni · ably \ -bl ē \ adverb