What does "rancor" convey in terms of feelings?

The term "rancor" specifically conveys a sense of bitter resentment or ill will. It describes a deep-seated feeling of animosity, often resulting from past grievances or perceived wrongs. When someone harbors rancor, it reflects a strong negative emotion that can linger for an extended period, influencing their thoughts and actions regarding the person or situation that caused the hurt. This word effectively embodies a hostile attitude, making it clear that the emotions involved are far from positive or neutral. In contrast, the other choices reflect emotions that are either positive, indifferent, or based on trust, which do not capture the essence of rancor.