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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Example Sentences
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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 are childish elements – cartoony comic-relief kids, a cute ball-robot called Haro who’d become Gundam’s enduring mascot.—
Kambole Campbell,
IndieWire,
21 Aug. 2025
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Somewhere between building sandcastles as children and assuming adult responsibilities, the impulse to play is often labeled as childish.—
Cheryl Robinson,
Forbes.com,
19 Aug. 2025
Adjective
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The immature or nymph stage is similar in shape but more red than adult bugs.—
Arricca Elin SanSone,
Southern Living,
23 Aug. 2025
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Several argued that refusing to attend was only stirring the pot, and slammed the woman for being immature and entitled.—
Deirdre Bardolf,
FOXNews.com,
16 Aug. 2025
Adjective
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Data from 70 countries show that while most women and adolescent girls have menstrual materials and a private place to change, many lack sufficient materials to change as often as needed.—
Maryanne Murray Buechner,
Forbes.com,
27 Aug. 2025
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While such evaluations can happen at most any age, diagnosis typically occurs in individuals over the age of 18, since many symptoms can overlap with normal adolescent development.—
Daryl Austin,
USA Today,
10 Aug. 2025
Adjective
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During a public comment period, parents of children and teens incarcerated in juvenile detention said officers often let fights happen instead of trying to first mediate conflict.—
Kelly Davis,
San Diego Union-Tribune,
27 Aug. 2025
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That was a time when more and more states were moving juvenile offenders into adult systems.—
Brittney Melton,
NPR,
26 Aug. 2025
Cite this Entry
“Infantile.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infantile. Accessed 4 Sep. 2025.
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