gainsay Synonyms

challenge dispute refuse rebut quarrel oppose negative impugn fight evert disprove disown discredit refute reject cast aspersions upon argue against take a stand against turn thumbs down take issue with disagree with call into question negate withstand traverse resist repudiate disclaim disavow contradicted contest confute conflict combat clash abjure belie argufy argue altercate contradicting contradict contravene disallow disagree disaffirm disacknowledge deny defy debate