1. a distinctive or peculiar feature or characteristic of a person
2. an unusual individual reaction to food or drug
Usage: medical

Examples

• Her idiosyncrasy of always wearing mismatched socks made her memorable.
• One of his idiosyncrasies was collecting vintage bottle caps.
• The teacher’s idiosyncrasy of humming while grading papers amused students.
• She had an idiosyncrasy to certain medications that required careful monitoring.
• His idiosyncrasy of eating dessert before dinner puzzled his friends.
• The artist’s idiosyncrasies made his work instantly recognizable.
• Everyone has their own idiosyncrasies that make them unique.