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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Recent Examples of infantile
For a long time, infantile amnesia was thought to be tied to an inability to make memories in infancy.
—
Sam Walters, Discover Magazine, 20 Mar. 2025
If this is correct, is there a connection between song and the most basic infantile communication?
—Aaron Shattuck, Scientific American, 18 Feb. 2025
The infantile abomination that is The Boss Baby is the most unhinged example of the studio’s manic folly.
—James Grebey, Vulture, 31 Jan. 2025
But, true to form, Abbott doesn’t self-righteously shove these issues in our faces, lecturing on about statistics or writing the students as infantile or helpless.
—Ile-Ife Okantah, Vulture, 16 Jan. 2025
See All Example Sentences for infantile
Sam Walters, Discover Magazine, 20 Mar. 2025
If this is correct, is there a connection between song and the most basic infantile communication?
—Aaron Shattuck, Scientific American, 18 Feb. 2025
The infantile abomination that is The Boss Baby is the most unhinged example of the studio’s manic folly.
—James Grebey, Vulture, 31 Jan. 2025
But, true to form, Abbott doesn’t self-righteously shove these issues in our faces, lecturing on about statistics or writing the students as infantile or helpless.
—Ile-Ife Okantah, Vulture, 16 Jan. 2025
See All Example Sentences for infantile
Recent Examples of Synonyms for infantile
Adjective
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There is something of the rat terrier in her small white face, an intensity that has never seemed childish but unnaturally adult.—
Lizz Schumer,
People.com,
17 June 2025
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From baby animals to childish drawings, Labubu to Mary Janes, all things cute have entered the mainstream.—
Gemma A. Williams,
Forbes.com,
17 June 2025
Adjective
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After hatching, the immature cicadas or nymphs spend 17 or 13 years underground, feeding on roots, then emerge during the spring and transform into adult cicadas.—
Saleen Martin,
USA Today,
14 June 2025
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And babies younger than six months old—who are ineligible for vaccination because of their immature immune system—have the highest rates COVID hospitalization after adults aged 75 and older.—
Lauren J. Young,
Scientific American,
10 June 2025
Adjective
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With its whip-smart satire and adolescent vulnerability, the movie catapulted Williamson into the Hollywood spotlight.—
JP Mangalindan,
Time,
19 June 2025
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Researchers reviewing camera trap footage from a remote island off Panama found that a group of adolescent capuchin monkeys were routinely kidnapping baby howler monkeys and carrying them around like accessories.—
Popular Science Team,
Popular Science,
18 June 2025
Adjective
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As summer approaches, a juvenile great white shark named Dold has today been detected off the Long Island coastline, marking the latest milestone in a months-long migration that has taken him up the U.S. East Coast.—
Alice Gibbs,
MSNBC Newsweek,
20 June 2025
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On Wednesday, law enforcement officials responded to a report of a missing juvenile resident.—
Muri Assunção,
New York Daily News,
19 June 2025
Cite this Entry
“Infantile.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infantile. Accessed 30 Jun. 2025.
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