unweighWiktionary 原文英美构词拆解unun-前缀weighweigh词干un-(added to adjectives or past participles) not · (added to nouns) lack of词源说明From un- + weigh.释义动词verb1To shift weight off of or to have the weight shifted off of.2To lift (an anchor) so that it no longer holds something in place.3To relieve from a burden.4To discount from serious consideration.