A feeling of deep anger and resentment. Bitterness is an emotion which encompasses both anger and hate, often people who are bitter appear to the world as just going around pissed off at everyone and everything. However bitterness is often a result of some past event which has hurt, scarred and jaded the person.
Mary let her bitterness she felt towards her family consume her.
by OneBadAsp November 03, 2006