Individual Differences

noun a person's or animal's nature, especially as it permanently affects their behavior

adjective relating to a person's or animal's nature or behavior

• The child's temperament is quite calm and easy-going.
• My dog has a very playful temperament.
• I can't stand her bad temperament when she's in a bad mood.
• His fiery temperament often gets him into trouble.

noun a branch of psychology that focuses on character development and traits

• Characterology is the study of different personality traits and characteristics.
• I find characterology fascinating because it helps me understand people better.
• I'm really into that characterology stuff, it's like reading people's minds.
• In a way, characterology is like decoding the hidden messages within a person's behavior.