contravene

/ˌkän-trə-ˈvēn/

Middle French or Late Latin; Middle French contrevenir, from Late Latin contravenire, from Latin contra- + venire to come

verb

  1. to go or act contrary to : violate

  2. to oppose in argument : contradict

contravene a law

deny gainsay contradict contravene mean to refuse to accept as true or valid. deny implies a firm refusal to accept as true, to grant or concede, or to acknowledge the existence or claims of. gainsay implies disputing the truth of what another has said.