Effusely is an adverb that describes an excessive or unreserved expression of emotion, gratitude or praise. Its synonyms include profusely, extravagantly, lavishly, exuberantly, gushingly, gregariously, ebulliently, demonstratively, volubly, and copiously. These words convey the idea of something flowing or pouring out in abundance, either from the speaker's emotions, their gratitude or their praise. They all speak to an outpouring of feelings that are so strong and immediate that they cannot be contained. These synonyms capture the sense of enthusiasm, excitement, and joyfulness that come with being effusive and make it easier to convey this sentiment in writing.