infantilism

Noun

an abnormal condition in which an older child or adult retains infantile characteristics
infantile behavior in mature persons
An emotional dependency on being treated as an infant.
An appearance like (that of) an infant.
A paraphilia based on the sight or feeling of diapers, or being diapered.

Examples

"A craniopharyngioma may produce infantilism."

Origin / Etymology

From infantile + -ism.

Scrabble Score: 16

infantilism is a valid Scrabble (US) TWL word
infantilism is a valid Scrabble Word in Merriam-Webster MW Dictionary
infantilism is a valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 20

infantilism is a valid Words With Friends word