unbalefulWiktionary 原文构词拆分un-前缀(added to adjectives or past participles) not · (added to nouns) lack of+baleful词根/词干演变路径（由近及远）英语继承自 ←中古英语 unbaleful继承自 ←古英语 unbealuful词源说明From Middle English unbaleful, from Old English unbealuful, equivalent to un- + baleful.释义（英文）形容词 AdjectiveNot baleful, harmless, innocent.词族派生词（1）unbalefully