INFANTILE Synonyms: 32 Similar and Opposite Words

infantile

adjective

ˈin-fən-ˌtī(-ə)l

Definition of infantile

as in childish

having or showing the annoying qualities (as silliness) associated with children the infantile humor that teenage boys are justly famous for

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Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of infantile Miami’s infantile offense can’t afford to carry this team. — Omar Kelly, Miami Herald, 12 June 2026 Not for infantile name calling. — Mike Fleming Jr, Deadline, 8 Apr. 2026 Then, there’s this rather infantile tendency for the MAGA crowd to call any content moderation an act of censorship, which is a ludicrous distortion of the truth. — Joel Khalili, Wired News, 11 Mar. 2026 The question is if his self-serving instincts overcome his infantile rage. — Arkansas Online, 9 Mar. 2026 See All Example Sentences for infantile

Recent Examples of Synonyms for infantile

Adjective

There is a playful feeling to many PATTARAPHAN pieces, but this is not childish work.

— Rachel Elspeth Gross, Forbes.com, 20 Aug. 2026
And also settling a very childish dispute between the airport and the contractors.

— Business Columnist, Los Angeles Times, 20 Aug. 2026

Definition of childish

Adjective

The report, published in December 2024, cited multiple factors, including the fast fashion business model and immature textile recycling technologies.

— Roy Stephen Canivel, Footwear News, 23 Sep. 2026
Sprouts are essentially immature, miniature plants harvested shortly after germination.

— Kim Toscano, Southern Living, 14 Sep. 2026

Definition of immature

Adjective

But juvenile crime is down in Tennessee, too, and advocates and experts say the state’s push for more prisons does not line up with the needs of the kids in its care.

— Paige Pfleger, ProPublica, 25 Sep. 2026
The juveniles were cited on suspicion of reckless driving and driving without a license, and the charges were forwarded to juvenile prosecutors, police said.

— Madison Smalstig, Sacbee.com, 23 Sep. 2026

Definition of juvenile

Browse Nearby Words

infant

infantile

infantilized

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“Infantile.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infantile. Accessed 3 Oct. 2026.

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Synonyms of infantile

adjective

Example Sentences

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