unhesitatingWiktionary 原文构词拆分un-前缀(added to adjectives or past participles) not · (added to nouns) lack of+hesitating词根/词干词源说明From un- + hesitating.释义（英文）形容词 AdjectiveNot hesitating; with no hesitation.词族派生词（2）unhesitatinglyunhesitatingness