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

• seriality
• serialization
• serializations
• serialize
• serialized
• serializes
• serializing
• serial killer
• serial killers
• serially
• serial monogamy
• serial number
• serial numbers
• serial port
• serial ports
• serials
• serial technique
• serial techniques
• serial time
• serial times
• seriate
• seriated
• seriately
• seriates
• seriatim