Profusely is an adverb that describes something done in abundance or an overflowing manner. Some synonyms for profusely include copiously, generously, lavishly, bountifully, abundantly, excessively, and extravagantly. Each of these words convey the idea of something done with great intensity, in great quantity, or in a manner that is noticeably excessive. For instance, if someone is sweating profusely, they may also be sweating copiously or excessively. If someone is thanking another person profusely, they may also be thanking them generously or lavishly. These synonyms for profusely each provide a different nuance, but they all communicate the same basic idea of an abundance or overflow of something.