Light-heartedly is an adverb that means in a carefree or cheerful manner. Some synonyms for light-heartedly include playfully, merrily, joyfully, gleefully, gladly, happily, with a sense of humor, jokingly, humorously, blithely, and lightheartedly. These synonyms can be used interchangeably with light-heartedly to describe a person's cheerful or carefree attitude, behavior, or response to a situation. Whether you are enjoying a joke, telling a story, or engaging in a lively conversation, using a synonym for light-heartedly can help to add a touch of positivity and spark to any interaction.