the act of contradicting; gainsaying or opposition.

assertion of the contrary or opposite; denial.

a statement or proposition that contradicts or denies another or itself and is logically incongruous.

direct opposition between things compared; inconsistency.

a contradictory act, fact, etc.

noun

acceptance , agreement , approval , concession , confirmation , corroboration , ok , reconcilement , verification

noun

bucking , conflict , confutation , contravention , defiance , denial , difference , disagreement , discrepancy , dispute , dissension , gainsaying , incongruity , inconsistency , negation , opposite , opposition , antagonism , antithesis , contradistinction , contraposition , contrariety , contrariness , polarity , disaffirmance , disaffirmation , disclaimer , rejection , antilogy , paradox