pin-headed From WikiWord, the free dictionary English Contents DefinitionsRelated wordsReferences DefinitionsadjectiveHaving a head that is unusually tapered or small.Foolish; ignorant. Related wordsSynonymsflatheadedbaldheadedhammerheadedshockheadedbigheadedweakheadedpintsizedemptyheadedhot-headedhard-headedbare-headedsoft-headedtow-headedpin-stripedtetched in the headbeetleheaded References Wiktionary — pin-headed Wikipedia — pin-headed