matchstick I. \ˈ ̷ ̷ˌ ̷ ̷\noun : the slender length of wood or other fairly rigid material used in making matches II. adjective 1.: made of or as if of matchsticks 2.: of, relating to, or constituting stick figures < how to draw buildings, animals, matchstick men — British Book News > III. noun : something resembling a matchstick especially in slenderness < cut a carrot into matchsticks >