The meaning of TRAIT is a distinguishing quality (as of personal character). How to use trait in a sentence. 'trait' - Complete English Word Reference Definitions of 'trait' A trait is a particular characteristic, quality, or tendency that someone or something has. [...] A trait is a particular quality in your personality or a collection of traits associated with a condition. Learn the pronunciation, examples, synonyms and word origin of trait. Trait definition: A genetically determined characteristic or condition.Trait Sentence Examples She recognized this trait and would accept rules she herself would never be able to make. That and her beauty – but that's not a character trait, is it? Every trait and every movement of the Tsar's seemed to him enchanting. He'd always known Pumpkin was a flake, but he honestly liked the young man and flakiness wasn't the worst trait carried by the young and the restless. This Deidre shared that ...