nerveless Syllabification: (nerve·less)Pronunciation: /ˈnərvlis/Definition of nerveless adjective 1inert; lacking vigor or feeling:the knife dropped from Grant’s nerveless fingers (of literary or artistic style) diffuse or insipid:Wilde and his art are described as “nerveless and effeminate.” 2confident; not nervous:with nerveless panache 3 Anatomy & Biology lacking nerves or nervures. Derivatives nervelessly adverb nervelessness noun nerveless in other Oxford dictionaries Definition of nerveless in the British & World English dictionary