(n.) state or quality of being contrary; opposition; inconsistency; contrariety; perverseness; obstinacy.

abhorrence abomination aggression aggressiveness allergy animosity animus annulling antipathy antithesis argumentation aversion backlash bad blood bellicism bellicosity belligerence belligerency chauvinism clash clashing cold sweat collision combativeness competition con conflict confrontation confutation contention contentiousness contradiction contradistinction contraindication contraposition contrariety contrariness contrast controversy counteraction counterposition counterworking crankiness creeping flesh cross-purposes crotchetiness despitefulness difference disaccord disaccordance disagreement discord discordance discordancy discrepancy disgust disharmony disparity dissension dissent dissidence dissonance disunion disunity divergence diversity enmity faction ferocity fierceness fight fractiousness friction hate hatred horror hostility inaccordance incongruity inconsistency inequality inimicalness interference jarring jingoism kick loathing malevolence malice malignity martialism militancy militarism mortal horror nausea negation negativeness nonconformity noncooperation nullification obstinacy oppositeness opposition opposure oppugnance oppugnancy perverseness perversity polarity pugnaciousness pugnacity quarrelsomeness rancor reaction recalcitrance recoil refractoriness renitency repercussion repugnance repulsion resistance revolt rivalry saber rattling showdown shuddering spite spitefulness strife swimming upstream truculence uncooperativeness unfriendliness unharmoniousness unpeacefulness variance vying warmongering warpath withstanding