Dunce/dʌns/ Definition 1 of 2Pro Tip 1/3Negative Connotation Used to insult someone's intelligence, often considered hurtful. Don't call someone a dunce; it's very offensive. Pro Tip 2/3Historical Origin Originally referred to followers of John Duns Scotus, who wore 'dunce caps'. Historically, a 'dunce' would wear a pointed hat. Pro Tip 3/3Classroom Punishment A 'dunce cap' was formerly used to punish and shame students in school. Standing in the corner with a dunce cap was once a common school punishment.