Definitions:

1. Conveys a sense of brightness, happiness, or festivity in the way an action is performed. ADVERB
   • The crowd danced gaily to the music, creating a lively atmosphere at the festival.
2. Describes doing someting in a cheerful, lighthearted, or joyful manner. ADVERB
   • The market was decorated gaily with colorful banners and lights for the holiday season.

Synonyms:

• brightly
• cheerfully
• happily
• joyfully
• merrily