unfathomableWiktionary 原文英/(ˌ)ʌnˈfæðəməbl̩/美/ˌʌnˈfæð(ə)məb(ə)l/adj.莫测高深的，深不可测的，无底的中文释义来自 ECDICT构词拆解unun-前缀fathomfathom词干‘to measure the depth of (water); (figurative) to deeply understand (someone or something)’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.词源链原始词根原始印欧语Proto-Indo-European约前 4500–前 2500 年*peth₂-英语Englishunfathomable词源说明From un- (prefix meaning ‘not’) + fathom (“to measure the depth of (water); (figurative) to deeply understand (someone or something)”) + -able (suffix forming adjectives denoting things not able or fit to be done).释义形容词adjective1Impossible to fathom.同族词派生词 3unfathomability·unfathomableness·unfathomably相关词 4fathom·