adversary adversative adverse adversive alien antagonistic anti antipathetic antithetic antonymous at cross-purposes balancing breakaway clashing compensating competitive con conflicting confronting contradicting contradictory contradistinct contrapositive contrarious contrary contrasted converse counter counteractant counteracting counteractive counterbalancing counterpoised countervailing counterworking cranky cross crotchety dead against disaccordant discordant discrepant dissentient dissident enemy eyeball to eyeball fractious hostile inconsistent inimical inverse negative nonconformist noncooperative obstinate obverse opponent opposed opposing opposite oppositive oppugnant overthwart perverse reactionary recalcitrant refractory renitent repugnant resistant reverse revolutionary rival squared off uncooperative unfavorable unfriendly unpropitious