as in childish
having or showing the annoying qualities (as silliness) associated with children
the infantile humor that teenage boys are justly famous for
Synonyms & Similar Words
Relevance
Antonyms & Near Antonyms
Example Sentences
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
If nothing else is done with those mice, that association will apparently be forgotten later in life due to infantile amnesia.
—
John Timmer, Ars Technica, 21 Mar. 2025
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
See All Example Sentences for infantile
John Timmer, Ars Technica, 21 Mar. 2025
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
See All Example Sentences for infantile
Recent Examples of Synonyms for infantile
Adjective
-
For decades, bartenders have been defaming the Mai Tai, debasing it, making and selling versions of the drink that were childish and incomplex, saccharine and flat.—
Jason O'Bryan,
Robb Report,
13 Sep. 2025
-
Although childish and superficial, his renaming the Department of Defense as the Department of War doesn’t telegraph a love of peace.—
Steven Greenhut,
Oc Register,
12 Sep. 2025
Adjective
-
And enforcing size limits on catches could prevent the overharvesting of immature sharks and help maintain population resilience.—
Melissa Cristina Márquez,
Forbes.com,
18 Sep. 2025
-
In the comments, some people point out that the situation feels immature.—
Ashley Vega,
PEOPLE,
16 Sep. 2025
Adjective
-
The film tracks Chou’s navigation of adolescent relationships, including romantic disappointment and academic pressure, as external political events amplify personal upheavals.—
Naman Ramachandran,
Variety,
20 Sep. 2025
-
Her mother decided that her daughter’s lesbianism was only an adolescent phase.—
Nicole Flattery,
Harpers Magazine,
19 Sep. 2025
Adjective
-
As the consequences of permanent records became clear—blocking access to jobs, housing, and education—states began experimenting with mechanisms to seal or expunge certain convictions, usually for first-time or juvenile offenders.—
Walter Pavlo,
Forbes.com,
15 Sep. 2025
-
Unlike natural thinning, large fire-resilient trees are typically high-graded for felling in Jackson, creating tinderboxes of 300 to 500 mostly juvenile trees per acre.—
John P. O’Brien,
Mercury News,
13 Sep. 2025
Cite this Entry
“Infantile.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infantile. Accessed 21 Sep. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share