the complex of all the attributes--behavioral, temperamental, emotional and mental--that characterize a unique individual
"their different reactions reflected their very different personalities"
"it is his nature to help others"
A set of non-physical psychological and social qualities that make one person distinct from another.
"Her warm and outgoing personality made it easy for everyone at the party to feel comfortable around her."
In plain English: Personality is the unique mix of traits that makes each person act and feel differently from everyone else.
"She has a very outgoing personality that makes her easy to talk to."
Usage: Personality refers to the unique combination of character traits and behaviors that distinguish one individual from another. Use this term when describing someone's overall nature or how they interact with the world, rather than their specific mood at a given moment.
The word "personality" entered English in the late 14th century via Middle French and Old Latin, originally referring to a character role played by an actor rather than one's inherent traits. It was later reinterpreted as meaning the distinctive qualities that make someone unique.