Word Study
infantilism
OXFORD DICTIONARY
infantilism, n.
1 childish behaviour.
2 Psychol. the persistence of infantile characteristics or behaviour in adult life.
1 childish behaviour.
2 Psychol. the persistence of infantile characteristics or behaviour in adult life.
THESAURUS
infantilism
amentia, arrested development, babyishness, backwardness, blithering idiocy, childishness, cretinism, half-wittedness, idiocy, idiotism, imbecility, immaturity, insanity, mental defectiveness, mental deficiency, mental handicap, mental retardation, mongolianism, mongolism, mongoloid idiocy, moronism, moronity, profound idiocy, puerilism, puerility, retardation, retardment, simple-wittedness, simplemindedness, simpleness, simplicity, subnormalityFor further exploring for "infantilism" in Webster Dictionary Online