When you mean ‘a feature of someone’s character’, use characteristic or quality: ‘All great leaders share certain mean characteristics.’ (1) A characteristic property that defines the apparent individual nature of something: ‘His radical opinion on education is criticized by all.’ (2) An actor’s portrayal of someone in a play or an imaginary person represented in a work of fiction (play, film or story): ‘She played the character of Lady Macbeth.’ ‘She is the main character of the novel.’ (3) Good repute: ‘He is a man of character.’