Irreconcilable

прилагательное 1) непримиримый 2) несовместимый, противоречащий Синоним(ы): discrepant, contradictory

Большой англо-русский словарь

Irreconcilable

I. adjective impossible to reconcile Example: irreconcilable differencesirreconcilability nounirreconcilableness nounirreconcilably adverb II. noun one that is irreconcilable; especially a member of a group (as a political party) opposing compromise or collaboration

Merriam-Webster's Collegiate Dictionary