controvert Synonyms

oppose refute contradict rebut repudiate redargue question pettifog pamphleteer argue against oppugn disavower opposing opposed non negative litigate invalidate resist retroact disconfirm call into question debunk have words blow out of the water disharmonize polemize polemise polemicize polemicise negate wrangle withsay traverse squabble spiritualize impugn gainsay gainsaying contravene contradicting contradicted contest contend consider confute confound challenge canvass break