unconcernedWiktionary 原文中文来自 ECDICTadj.漠不关心的构词拆分un-前缀(added to adjectives or past participles) not · (added to nouns) lack of+concerned词根/词干也可拆分为unconcern词根/词干+-ed后缀Used to form past tenses of (regular) verbs. In linguistics, it is used for the base form of any past form. See -t for a variant.词源说明From un- + concerned or unconcern + -ed.释义（英文）形容词 AdjectiveIndifferent and having no interest; aloof.Not anxious, apprehensive, or worried.Having no involvement.词族派生词（2）unconcernedlyunconcernedness