ateliosis atelier • Atellan · · · Info · Definitions · Synonyms · Characters · · ateliosis · · Text Latin · · Script 9 · · Length 4 · · Syllables Definitions · · · (noun) a form of infantilism characterized by physical underdevelopment but normal intelligence. Synonyms: ateleiosis. · · Noun Definition 1 Synonyms · · · ateleiosis · · Synonym 1 Characters · · a latin small letter a U+0061 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C o latin small letter o U+006F s latin small letter s U+0073 t latin small letter t U+0074