dunce's cap

dunce cap

also dunce's cap (dŭn′sĭz)n. A cone-shaped paper cap, formerly placed on the head of a slow or lazy pupil. Also called fool's cap.

Thesaurus

Noun

1.

dunce's cap - a cone-shaped paper hat formerly placed on the head of slow or lazy pupilsdunce cap, fool's capchapeau, hat, lid - headdress that protects the head from bad weather; has shaped crown and usually a brim