unimpeachableWiktionary 原文英美adj.无懈可击的，无可指责的，无过失的中文释义来自 ECDICT构词拆解unun-前缀impeachableimpeachable词干un-(added to adjectives or past participles) not · (added to nouns) lack of词源说明From un- + impeachable.释义形容词adjective1Not able to be impeached or reproached.2Blameless.3Beyond doubt.同族词派生词 3unimpeachability·unimpeachableness·