Definitions

1. adjective

relating to or characteristic of a woman, especially a woman of high social status or elegance

“The mondaine hostess ensured that the evening’s events ran smoothly.”

2. noun

a woman who is fashionable or elegant, especially a high-society woman

“The mondaine was a popular subject in the 18th-century art”

3. noun

a woman who is well-connected and influential in high society

“The mondaine played a key role in organizing the charity gala.”