Synonyms for Hard Feelings

Rancor
acrimony animosity animus antagonism antipathy	aversion bad blood bitterness disgust	enmity feud hard feelings hostility	malice rancor resentment vendetta

Virulence
acerbity acidity acridity acrimony anger animosity asperity	astringency bad temper bile bitterness choler discontent gall	hard feelings mordancy poignancy rancor severity sharpness soreness	sourness spleen stridency stringency teeth violence virulence