throw doubt on

assail contravene tar

attack blast break contradict cross deny dispute gainsay knock negate negative oppose question resist slam smear traduce trash traverse zap

call into question cast doubt upon come down on cut to shreds disaffirm pin something on put down run down skin alive stick it to swipe at throw the book at thumb nose at zing

agree aid allow approve assist compliment concede confirm corroborate go along help join praise stay support

flatter