infantilism

noun
in·​fan·​til·​ism | \ˈin-fən-ˌtī-ˌli-zəm, -tə-ˌli-;in-ˈfan-tə-ˌli-\

Definition of infantilism 

1 : retention of childish physical, mental, or emotional qualities in adult life especially : failure to attain sexual maturity

2 : an act or expression that indicates lack of maturity

Examples of infantilism in a Sentence

Recent Examples on the Web

Contemporary cinematographic literature is the result of progressive infantilism of content and the narrowing of perspective. Isabel Coixet, Harper's BAZAAR, "This Female Director is Sick of Reading Scripts About "Young, Sexy Women"," 28 June 2016

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'infantilism.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of infantilism

1895, in the meaning defined at sense 1

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The first known use of infantilism was in 1895

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More Definitions for infantilism

infantilism

noun
in·​fan·​til·​ism | \ˈin-fən-ˌtīl-ˌiz-əm, -tə-ˌliz-; in-ˈfan-tᵊl-ˌiz- \

Medical Definition of infantilism 

: retention of childish physical, mental, or emotional qualities in adult life especially : failure to attain sexual maturity

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