nonsigningWiktionary 原文英美构词拆解nonnon-前缀signingsigning词干non-Used in the sense of no or none, to show lack of or failure to perform; or in the sense of not, to negate the meaning of the word to which it is prefixed.词源说明From non- + signing.释义形容词adjective1Not signing (endorsing a document with one's name).2sign languageNot using sign language.