unsignedWiktionary 原文英美构词拆解unun-前缀signedsigned词干un-(added to adjectives or past participles) not · (added to nouns) lack of词源说明From un- + signed.释义形容词adjective1(computing) Not accepting negative numbers; having only a positive value (or zero).2Lacking a signature, unendorsed.3Not signed to an organization such as a sports club or record label.名词noun1(computing) A numeric value or variable that has no sign