IPA: /ˈwɪn.sə.məs/
KK: /ˈwɪn.sə.məs/
The quality of being charming, attractive, or pleasing in a way that draws others in.
Her winsomeness made her the center of attention at the party.
Winsomeness → It is formed from "winsome" (from Old English "wynn" meaning joy or pleasure, and "some" meaning characterized by) and the suffix "-ness" (meaning the state or quality of). The word "winsomeness" refers to the quality of being charming or delightful, evoking joy.
Think of 'joy' ('wynn') and 'characterized by' ('some') to remember that 'winsomeness' means the quality of being charming and delightful.