Entry 1 sense Webster, 1913 Uncompromising /ən-käm'-prəm-īz-ĭng/ · Un·com·pro·mi·sing · IPA /ənkˈɑmprəmaɪzɪŋ/ 01 a. Not admitting of compromise; making no truce or concessions; obstinate; unyielding; inflexible. 1. Not admitting of compromise; making no truce or concessions; obstinate; unyielding; inflexible.