从认知语言学中的原型范畴开篇,探讨了语言中存在的反义词素构成的反训词语的模糊性;从范畴中的家族相似性以及范畴之间界限的模糊性入手,讨论了此类反训词语模糊性形成的原因。一方面旨在从人类认知的角度更好地探讨语言的模糊性,另一方面是使那些由反义词素构成的反训词语得到更多的认识。 Starting from the prototype category in cognitive linguistics, this paper explores the fuzziness of anti-pronoun words formed by antisense morphemes in language. Starting with the family similarities in categories and the fuzziness of boundaries between categories, The Causes of Formation of Vagueness of Words. On the one hand aims to better explore the ambiguity of the language from the perspective of human cognition, on the other hand, to make those anti-lexical words formed by antisense elements get more recognition.