rancor

animosity, animus, antagonism, antipathy, bad blood, bitterness, gall, grudge, hostility, jaundice, rancor

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, venom

amiability, amicability, civility, cordiality, friendliness, hospitality, neighborliness; comity, empathy, friendship, goodwill, sympathy, understanding