pinhead pinguitudinous • pinheaded · · · Info · Definitions · Synonyms · Characters · · pinhead · · Text Latin · · Script 7 · · Length Definitions · · · (noun) an ignorant or foolish person. Synonyms: dumbbell, dummy, dope, boob, booby. · · Noun Definition 1 (noun) the head of a pin. · · Noun Definition 2 Synonyms · · · dumbbell · · Synonym 1 dummy · · Synonym 2 dope · · Synonym 3 boob · · Synonym 4 booby · · Synonym 5 Characters · · a latin small letter a U+0061 d latin small letter d U+0064 e latin small letter e U+0065 h latin small letter h U+0068 i latin small letter i U+0069 n latin small letter n U+006E p latin small letter p U+0070