What does it mean to have a personality disorder?

Dysfunctional caract: Personality is the way you have learned (or inherited) to how to interact, respond, perceive , life in general and will affect the perception of self/others, daily behavior, interaction with peers and outside/inside world in general.In general we use the term of "disorder: when this personality causes dysfunction in life. Many people have few traits of some personality but not the disorder.

Ingrained pattern : Of behavior, it means it is what it is and it can be not easy to change.

Personality Disorder: Is inflexible pattern of perceiving, interpreting & communicating with others that results in distress or interferes with one's daily functioning.