unflutterableWiktionary 原文英美构词拆解unun-前缀flutterflutter词干able-able后缀un-(added to adjectives or past participles) not · (added to nouns) lack of-ableAble to be done; fit to be done. · Relevant to or suitable to, in accordance with.词源说明From un- + flutter + -able.释义形容词adjective1Unable to be fluttered or flustered; calm and collected.