1. (n.) Enmity; unfriendliness; animosity\.

2. (n.) An act of an open enemy; a hostile deed; especially in the plural, acts of warfare; attacks of an enemy.

Kilkenny cats abhorrence abomination action aggression aggressiveness allergy altercation animosity animus antagonism anteposition antipathy antithesis argument aversion bad blood bad feeling bellicism bellicosity belligerence belligerency bickering bloodshed cat-and-dog life chauvinism clash clashing cold sweat collision combat combativeness competition conflict confrontation confrontment contention contentiousness contest contestation contradiction contradistinction contraindication contraposition contrariety contrariness contrast controversy counterposition creeping flesh cross-purposes cut and thrust debate despitefulness disaccord disaffinity disagreement discrepancy disgust disputation dispute dissension enmity ferocity fierceness fight fighting fractiousness friction hard feelings hardheartedness hate hatred horror hostilities ill will immediate dislike inconsistency inimicalness jingoism litigation loathing logomachy malevolence malice malignity martialism militancy militarism mortal horror nausea negativeness noncooperation obstinacy opposing oppositeness opposition opposure oppugnance oppugnancy paper war personality conflict perverseness perversity polar opposition polarity polarization polemic posing against pugnaciousness pugnacity quarrel quarreling quarrelsomeness rancor recalcitrance refractoriness repugnance repulsion rivalry saber rattling scrapping showdown shuddering spite spitefulness squabbling state of war strife struggle truculence uncooperativeness unfriendliness unpeacefulness vying war war of words warfare warmongering warpath words wrangling