n. 25B6; noun a former employee with a grudge : GRIEVANCE, resentment, bitterness, rancour, pique, umbrage, dissatisfaction, disgruntlement, bad feelings, hard feelings, ill feelings, ill will, animosity, antipathy, antagonism, enmity, animus; informal a chip on one's shoulder.
25B6; verb
he grudged the time that the meetings involved : BEGRUDGE, resent, feel aggrieved about, be resentful of, mind, object to, take exception to.
I don't grudge you your success : ENVY, begrudge, resent, be jealous of, be envious of, be resentful of.