infantilism

Noun

Meaning

infantile behavior in mature persons

an abnormal condition in which an older child or adult retains infantile characteristics

Source: WordNet

ignorance incompleteness imperfection immaturity backwardness idiocy cretinism arrested development greenness rawness childishness crudity swaddle amentia immatureness

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education experience idea knowledge understanding intelligence

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abnormality misbehavior misdeed misbehaviour abnormalcy

ateliosis ateleiosis

infantility infantilist

infantileness infantilisation infantilise infantilist infantility infantilization