infantile

adjective
in·fan·tile | \ˈin-fən-ˌtī(-ə)l, -tᵊl, -ˌtēl, -(ˌ)til\

Definition of infantile 

1 : of or relating to infants or infancy

2 : suitable to or characteristic of an infant especially : very immature infantile humor

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Other Words from infantile

infantility \ˌin-fən-ˈti-lə-tē \ noun

Synonyms & Antonyms for infantile

Synonyms

adolescent, babyish, childish, immature, jejune, juvenile, kiddish, puerile

Antonyms

adult, grown-up, mature

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Examples of infantile in a Sentence

the infantile humor that teenage boys are justly famous for

Recent Examples on the Web

His needs are more primitive, an infantile hunger for approval and praise, a craving that can never be satisfied. CBS News, "Charles Krauthammer, longtime conservative columnist and Fox News personality, dead at 68," 22 June 2018 His needs are more primitive, an infantile hunger for approval and praise, a craving that can never be satisfied. CBS News, "Charles Krauthammer, longtime conservative columnist and Fox News personality, dead at 68," 22 June 2018 His needs are more primitive, an infantile hunger for approval and praise, a craving that can never be satisfied. CBS News, "Charles Krauthammer, longtime conservative columnist and Fox News personality, dead at 68," 22 June 2018 His needs are more primitive, an infantile hunger for approval and praise, a craving that can never be satisfied. CBS News, "Charles Krauthammer, longtime conservative columnist and Fox News personality, dead at 68," 22 June 2018 That Butler built such a monumental art was all the more remarkable considering he was blinded by infantile glaucoma shortly after birth. Howard Reich, chicagotribune.com, "Remembering Henry Butler, a New Orleans giant," 9 July 2018 His needs are more primitive, an infantile hunger for approval and praise, a craving that can never be satisfied. CBS News, "Charles Krauthammer, longtime conservative columnist and Fox News personality, dead at 68," 22 June 2018 His needs are more primitive, an infantile hunger for approval and praise, a craving that can never be satisfied. CBS News, "Charles Krauthammer, longtime conservative columnist and Fox News personality, dead at 68," 22 June 2018 His needs are more primitive, an infantile hunger for approval and praise, a craving that can never be satisfied. CBS News, "Charles Krauthammer, longtime conservative columnist and Fox News personality, dead at 68," 22 June 2018

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

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First Known Use of infantile

1696, in the meaning defined at sense 1

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Statistics for infantile

Last Updated

13 Oct 2018

Look-up Popularity

Time Traveler for infantile

The first known use of infantile was in 1696

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More Definitions for infantile

infantile

adjective

English Language Learners Definition of infantile

: annoying and childish : very silly in a way that is not appropriate or polite

medical : affecting babies or very young children

infantile

adjective
in·fan·tile | \ˈin-fən-ˌtīl \

Kids Definition of infantile

: childish sense 2 infantile behavior

infantile

adjective
in·fan·tile | \ˈin-fən-ˌtīl, -tᵊl, -ˌtēl, -(ˌ)til \

Medical Definition of infantile 

1 : of, relating to, or occurring in infants or infancy infantile eczema

2 : suitable to or characteristic of an infant especially : very immature

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Comments on infantile

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a state of commotion or excitement

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