unfoundedWiktionary 原文中文来自 ECDICTadj.没有事实根据的，没有理由的，虚幻的，未建立的构词拆分un-前缀(added to adjectives or past participles) not · (added to nouns) lack of+founded词根/词干词源说明From un- + founded.释义（英文）形容词 AdjectiveHaving no strong foundation; not based on solid reasons or facts.Not having been founded or instituted.(obsolete) Bottomless.词族派生词（2）unfoundedlyunfoundedness