hostility

1 a deep-seated ill will a lingering hostility between the two neighbors ever since since they had that property-line dispute Synonyms animosity, animus, antagonism, antipathy, bad blood, bitterness, gall, grudge, enmity, jaundice, rancorRelated Words blood feud, feud, score, vendetta; hate, hatred, loathing; vindictiveness, virulence, vitriol; alienation, disaffection, estrangement; conflict, coolness, discord, friction, strain, tension; inhospitableness, unfriendliness; malice, malignancy, malignity, spite, spitefulness, venomNear Antonyms amiability, amicability, civility, cordiality, friendliness, hospitality, neighborliness; comity, empathy, friendship, goodwill, sympathy, understandingAntonyms amity

2 hostilities pl  a state of armed violent struggle between states, nations, or groups both sides agreed to cease all hostilities for Hanukkah and Christmas Synonyms conflagration, conflict, hostilities, hot warRelated Words civil war, cold war, holy war, limited war, police action, world war; action, battle, engagement, skirmish; combat, fighting, warfareNear Antonyms demilitarization, demobilization, disarmament; pacification; cease-fire, truce; calm, peacefulness, tranquillity (or tranquility)Antonyms peace