Englishrancor
noun
an atmosphere of festering rancor and distrust:
bitterness, spite, hate, hatred, resentment, malice, ill will, malevolence, malignancy, animosity, antipathy, enmity, hostility, acrimony, venom, poison, vindictiveness, balefulness, vengefulness, vitriol, virulence, perniciousness, meanness, nastiness;
informal bitchiness, cattiness;
literary maleficence.
▷antonyms amicability.