← BackshareGuessfatheaded/ˈfætˌhɛdɪd/adjectiveStupid, foolish, or stubbornly unwilling to listen to reason.His fatheaded decision cost the team the game.She called him fatheaded for refusing to ask for directions.Only a fatheaded person would ignore such clear warnings.SynonymsobstinatestupidfoolishAntonymssensiblesmart