Gladsomely is an adverb used to describe something that is done joyfully or happily. There are many synonyms for this word, each with its own subtle difference in meaning. Some synonyms for gladsomely include merrily, cheerfully, delightfully, joyfully, happily, and gleefully. Merrily implies a sense of lightheadedness or carefree cheerfulness, while cheerfully emphasizes an outgoing, positive attitude. Delightfully suggests that something is immensely pleasing or enjoyable, while joyfully indicates a deep and abiding sense of happiness. Finally, gleefully emphasizes a sense of mischievous delight or pleasure in something. Ultimately, the choice of synonym depends on the context in which it is used, as well as the writer or speaker's intended tone.