Disgruntling means causing dissatisfaction or annoyance. Antonyms for disgruntling are words that signify the opposite emotion, so they have positive connotations. These words can include pleasing, gratifying, satisfying, reassuring, comforting, and delightful. Something that is pleasing brings about pleasure, joy, or contentment. Gratifying describes a sense of fulfillment, satisfaction, or accomplishment. Something that is satisfying meets your needs, goals or desires. Reassuring implies easing someone's concerns or fears. Comforting evokes feelings of care and support, while delightful suggests an experience that is enjoyable and charming. All these words capture the opposite effect of disgruntling, which is to bring someone happiness, satisfaction and contentment.