Synonyms for rancor

malice, spite, hatred, malignity, enmity, ill will, malevolence, ill feeling, animosity, animus, hostility, bitterness, resentment, unfriendliness, antagonism, variance, antipathy, aversion, uncharitableness, vindictiveness, hardness of heart, acrimony, harshness, venom, mordacity, acerbity, ruthlessness, umbrage, pique, bile, spleen, virulence, spitefulness, vengeance, grudge, dudgeon, vengefulness, revengefulness, retaliation; see also hate.

Antonyms friendship*, love, good will.