hundred-percent I. \| ̷ ̷ ̷ ̷ ̷ ̷| ̷ ̷\adjective 1.: perfect, unalloyed, genuine 2.: thoroughgoing, unquestionable < the resources of the hundred-percent American — The Bookman > II. adverb : without qualification or reservation : entirely, completely < a hundred-percent pure wool >