unattestedWiktionary 原文构词拆分un-前缀(added to adjectives or past participles) not · (added to nouns) lack of+attested词根/词干词源说明From un- + attested.释义（英文）形容词 AdjectiveNot supported by attestation; lacking supporting evidence in the form of assurance from an authority.词族派生词（1）unattestedness