1. excessive concern with one's appearance, dress, and personal style; the behavior or attitudes characteristic of a dandy.
Usage: uncountable; often used critically or humorously
2. a cultural or artistic movement or philosophy emphasizing aesthetic refinement, elegance, and individualism in dress and manner.
Usage: historical; often capitalized when referring to the 19th-century movement

Examples

• His dandyism was evident in the way he spent hours selecting the perfect cravat.
• The character's dandyism made him the subject of ridicule among his more practical peers.
• Victorian dandyism celebrated the art of dressing well as a form of self-expression.
• She dismissed his concern with designer labels as mere dandyism.
• The novel explores dandyism as a rebellion against conventional society.
• His dandyism extended beyond clothing to his carefully curated collection of rare books.