unpresumptuousWiktionary 原文英美构词拆解unun-前缀presumptuouspresumptuous词干un-(added to adjectives or past participles) not · (added to nouns) lack of词源说明From un- + presumptuous.释义形容词adjective1Not presumptuous; modest同族词派生词 2unpresumptuously·unpresumptuousness