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1. A state of arrested development in an adult, characterized by retention of infantile mentality, accompanied by stunted growth and sexual immaturity, and often by dwarfism.
a. Marked immaturity, as in behavior or character: "infantilism, which is the subtext of so much American cinema and culture" (John Simon).
b. An infantile act or remark.
1. (Psychology) psychol
a. a condition in which an older child or adult is mentally or physically undeveloped
b. isolated instances of infantile behaviour in mature persons
2. childish speech; baby talk
in•fan•ti•lism(ˈɪn fən tlˌɪz əm, -taɪˌlɪz-, ɪnˈfæn tlˌɪz əm)
1. the persistence in an adult of markedly childish anatomical, physiological, or psychological characteristics.
2. an infantile act, trait, etc.
the condition of one who is not a child acting abnormally childlike. — infantility, n. — infantilistic, adj.See also: Psychology
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|Noun||1.||infantilism - an abnormal condition in which an older child or adult retains infantile characteristics|
abnormalcy, abnormality - an abnormal physical condition resulting from defective genes or developmental deficiencies
|2.||infantilism - infantile behavior in mature persons|