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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Example Sentences
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Recent Examples of immature
Transitioning to the playful if immature Roxster in Mad About the Boy was a breath of fresh air for Woodall.
—
Kalia Richardson, Rolling Stone, 22 Feb. 2025
Sorry guys, but this immature behavior by a guy who has us all in a vice ain't working for me!
—Mark Joseph, Newsweek, 22 Feb. 2025
These clowns dressed as presidents appear immature and narcissistic.
—Nancy Tartaglione, Deadline, 9 Feb. 2025
A lot of us automatically use certain emotionally immature phrases without even thinking about it.
—Kathy and Ross Petras, Contributors, CNBC, 1 Feb. 2025
See All Example Sentences for immature
Kalia Richardson, Rolling Stone, 22 Feb. 2025
Sorry guys, but this immature behavior by a guy who has us all in a vice ain't working for me!
—Mark Joseph, Newsweek, 22 Feb. 2025
These clowns dressed as presidents appear immature and narcissistic.
—Nancy Tartaglione, Deadline, 9 Feb. 2025
A lot of us automatically use certain emotionally immature phrases without even thinking about it.
—Kathy and Ross Petras, Contributors, CNBC, 1 Feb. 2025
See All Example Sentences for immature
Recent Examples of Synonyms for immature
Adjective
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The study followed adults younger than 50 who didn’t have any comorbidities from 2010 to 2018.—
Cara Lynn Shultz,
People.com,
18 Mar. 2025
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There were children as young as three years old having their first experience on the slopes to seasoned skiers whizzing down steep trails.—
Brittany Vickers,
Essence,
18 Mar. 2025
Adjective
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The Empire is a manifesto opposing the most corrupt, childish film genre.—
Armond White,
National Review,
14 Mar. 2025
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Trump Turnberry calls pro-Palestinian group's actions a 'childish, criminal act' Police in Scotland said officers were investigating after receiving a report about the golf course being damaged around 4:40 a.m., a spokesperson for the department told Reuters and Fox News.—
Jonathan Limehouse,
USA TODAY,
10 Mar. 2025
Adjective
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All five suspects were booked into juvenile hall or jail custody.—
Robert Salonga,
The Mercury News,
10 Mar. 2025
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The American people deserve better than petty, juvenile stunts in one of the most sacred chambers of government.—
Tommy Tuberville,
Newsweek,
6 Mar. 2025
Adjective
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The victim was also found to be developmentally delayed with an adolescent cognitive level, the warrant affidavit said.—
Justin Muszynski,
Hartford Courant,
13 Mar. 2025
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Rates have stagnated in the last few years and lag far behind usage of other common adolescent immunizations to prevent meningococcal disease (88.4%) and tetanus, diphtheria and pertussis (89%).—
Lisa Doggett,
NPR,
12 Mar. 2025
Cite this Entry
“Immature.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/immature. Accessed 22 Mar. 2025.
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