What are the Big Five personality traits?

The Big Five model, also called the Five-Factor Model or OCEAN, describes personality across five broad dimensions. Openness to experience reflects curiosity, imagination, and preference for variety versus routine. Conscientiousness reflects organization, self-discipline, and goal-directed behavior versus carelessness. Extraversion reflects sociability, assertiveness, and positive emotionality versus reserved introversion. Agreeableness reflects cooperation, trust, and empathy versus hostility and competitiveness.