TRAIT By N., Pam M.S. - April 29, 2013 noun. 1. a lasting characteristic which depicts or ascertains a person's actions across a wide array of scenarios. 2. with regard to genetics, a trait stemming from a genetic predisposition. TRAIT: "The trait for red hair is not always recessive." Related Psychology Terms TRUE SCORE TERRITORY CARDINAL TRAIT CARDINAL TRAIT CORRESPONDENCE PENETRANCE TRAIT ANXIETY TIME OUT (TO) 1 UTILITY FAMILY METHOD Cite this page: N., Pam M.S., "TRAIT," in PsychologyDictionary.org, April 29, 2013, https://psychologydictionary.org/trait/ (accessed October 14, 2019).