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
Edamame Edamame are immature, green soybeans.
—
Amy Brownstein, Verywell Health, 28 May 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
Reimer, for his part, observed that, in many cases, governance is immature.
—John Werner, Forbes.com, 25 May 2026
But most summit speakers treated circularity—a nebulous concept at the best of times—largely as an engineering challenge, one hampered by immature infrastructure, policy gaps and weak economics.
—Jasmin Malik Chua, Footwear News, 15 May 2026
See All Example Sentences for immature
Amy Brownstein, Verywell Health, 28 May 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
Reimer, for his part, observed that, in many cases, governance is immature.
—John Werner, Forbes.com, 25 May 2026
But most summit speakers treated circularity—a nebulous concept at the best of times—largely as an engineering challenge, one hampered by immature infrastructure, policy gaps and weak economics.
—Jasmin Malik Chua, Footwear News, 15 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
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The team overachieved this season partly because Mazzulla turned an inexperienced supporting cast into a strength.—
Jay King,
New York Times,
28 May 2026
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Short selling can be an intellectually demanding approach to the market, and many inexperienced traders fall into a trap, lured by overvaluation and hype.—
David Capablanca,
Forbes.com,
28 May 2026
Adjective
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His new path takes him to grad school at Columbia University, with hopes to one day start his own nonprofit, Camp Reese, a bootcamp-style alternative to juvenile incarceration.—
Rina Nakano,
CBS News,
6 June 2026
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Plans are in motion, however, to reuse the Lincoln Developmental Center, a compound for developmentally disabled adults that was closed years ago, as a juvenile justice facility.—
Jeremy Gorner,
Chicago Tribune,
6 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
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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 11 Jun. 2026.
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