undoubtingWiktionary 原文英美构词拆解unun-前缀doubtingdoubting词干un-(added to adjectives or past participles) not · (added to nouns) lack of词源说明From un- + doubting.释义形容词adjective1of persons, states of mind, beliefs, etc.Experiencing or harboring no doubts; entirely confident.同族词派生词 2undoubtingness·undoubtingly