idiosyncrasy /id-i-ō-singˈkrə-si/

1. Peculiarity of temperament or mental constitution
2. Any characteristic of a person
3. Hypersensitivity exhibited by an individual to a particular food, drug, etc (medicine)

idiosyncratic /-kratˈik/ or idiosyncratˈical adjective

idiosyncratˈically adverb

• histones
• histopathological
• histopathologist
• histopathologists
• histopathology
• histoplasmoses
• histoplasmosis
• historian
• historians
• historiated
• historic
• historical
• historical cost
• historical linguistics
• historically
• historical materialism
• historical method
• historical novel
• historical novels
• historical painting
• historical present
• historical presents
• historical school
• historical schools
• historic cost