1
as in young
being in the early stage of life, growth, or development
immature frogs are called "tadpoles"
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Antonyms & Near Antonyms
2
as in childish
having or showing the annoying qualities (as silliness) associated with children
an immature teenager who still threw tantrums
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Antonyms & Near Antonyms
3
as in inexperienced
lacking in adult experience or maturity
many high school students are still too immature to foresee the consequences of their actions
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Antonyms & Near Antonyms
Example Sentences
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Recent Examples of immature
On a blind date, his descriptions of magical griffins and burning deserts sound humiliatingly immature.
—
Amy Nicholson, Los Angeles Times, 3 June 2026
Beckham is charismatic and generally more thoughtful than the perception created by the impulsive or immature decisions that create headlines.
—Dan Duggan, New York Times, 2 June 2026
And increasingly, emotionally immature minds are unable to distinguish fantasy, ideology and consequence from reality itself.
—Editorial, Boston Herald, 1 June 2026
Thiel’s vision of tech saving the world through unloosed, Saruman-style AI industrialists would be far more compelling if so many of these tech giants were not such strangely immature and insecure people.
—Nate Anderson, ArsTechnica, 26 May 2026
See All Example Sentences for immature
Amy Nicholson, Los Angeles Times, 3 June 2026
Beckham is charismatic and generally more thoughtful than the perception created by the impulsive or immature decisions that create headlines.
—Dan Duggan, New York Times, 2 June 2026
And increasingly, emotionally immature minds are unable to distinguish fantasy, ideology and consequence from reality itself.
—Editorial, Boston Herald, 1 June 2026
Thiel’s vision of tech saving the world through unloosed, Saruman-style AI industrialists would be far more compelling if so many of these tech giants were not such strangely immature and insecure people.
—Nate Anderson, ArsTechnica, 26 May 2026
See All Example Sentences for immature
Recent Examples of Synonyms for immature
Adjective
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For young travelers, Paintbox and Paintbox Petite are the resort’s exclusive clubs for children ages 5 to 12 and 2 to 5.—
Condé Nast,
Condé Nast Traveler,
11 June 2026
-
Big surf from a previous swell contributed to a drowning Saturday off Dana Point and, on Wednesday afternoon, the search continued for a young girl swept off the sand Tuesday evening in Laguna Beach.—
Laylan Connelly,
Oc Register,
11 June 2026
Adjective
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Giant, a play about Dahl running on Broadway through June, is anything but childish.—
Yair Rosenberg,
The Atlantic,
31 May 2026
-
Garrincha was characterised as childish and moronic in psychological tests commissioned by the Brazilian federation before that tournament in Sweden and was then left out of their first two games.—
Jack Lang,
New York Times,
28 May 2026
Adjective
-
In the end, an inexperienced minor – who has no idea who hired them – pulls the trigger.—
ABC News,
ABC News,
12 June 2026
-
Niemeyer found that random killing also creates chaos by replacing older coyotes that have learned the dangers of depredating livestock with younger, inexperienced coyotes that do depredate.—
Ted Williams,
Denver Post,
12 June 2026
Adjective
-
He was charged with felony disorderly conduct and detained for eight days at a juvenile facility in Kane County.—
Rebecca Johnson,
Chicago Tribune,
13 June 2026
-
Police said the driver, a juvenile male, was found shot and died at the scene.—
Brandon Downs,
CBS News,
13 June 2026
Adjective
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This ideal of masculinity is not a patriarch but a perpetual adolescent, endlessly irresponsible and endlessly indulged.—
Helen Lewis,
The Atlantic,
5 June 2026
-
The diary became a map of adolescent rivalry.—
Kate Casey,
Vanity Fair,
2 June 2026
Cite this Entry
“Immature.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/immature. Accessed 14 Jun. 2026.
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