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
Despite her experiences, Ellie is still emotionally immature, seeing independence as its own authority.
—
Mary McNamara, Los Angeles Times, 7 Apr. 2025
Symptoms Parents Should Look Out For Neuroblastoma is a cancer that arises from immature nerve cells.
—John W. Dean, MSNBC Newsweek, 6 Apr. 2025
The specks are immature scale insects called crawlers — the only life stage at which the insects move.
—Tim Johnson, Chicago Tribune, 6 Apr. 2025
Both immature and adult thrips feed by scraping surface cells to suck plant sap.
—Rita Perwich, San Diego Union-Tribune, 5 Apr. 2025
See All Example Sentences for immature
Mary McNamara, Los Angeles Times, 7 Apr. 2025
Symptoms Parents Should Look Out For Neuroblastoma is a cancer that arises from immature nerve cells.
—John W. Dean, MSNBC Newsweek, 6 Apr. 2025
The specks are immature scale insects called crawlers — the only life stage at which the insects move.
—Tim Johnson, Chicago Tribune, 6 Apr. 2025
Both immature and adult thrips feed by scraping surface cells to suck plant sap.
—Rita Perwich, San Diego Union-Tribune, 5 Apr. 2025
See All Example Sentences for immature
Recent Examples of Synonyms for immature
Adjective
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Aiming to better understand the sentiments of young American consumers today, Credit Karma’s survey, conducted by The Harris Poll, polled more than 2,000 U.S. adults ages 18 and older from April 7 to 9.—
Alexandra Pastore,
Footwear News,
5 May 2025
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And this week, younger sister Dory (Melissa Roxburgh) delivered Colter a file box full of Dad’s research on zero point energy — a box that’d previously been left with Lizzy’s mom, a former colleague with whom Ashton had an extramarital affair.—
Ryan Schwartz,
TVLine,
4 May 2025
Adjective
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See, the issue here isn’t that a college dude did a dumb, childish thing.—
Sean Keeler,
Denver Post,
28 Apr. 2025
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And anybody that thinks otherwise is just being foolish and immature and childish.—
ABC News,
ABC News,
13 Apr. 2025
Adjective
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Both Mike and Harriet were juvenile commissioners assigned by the city of San Francisco to mentor boys and girls.—
Erin Moriarty, Liza Finley,
CBS News,
4 May 2025
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Related Stories The result is a passably diverting curio that remains on the level of juvenile fantasy adventure, but with gratuitous elements inappropriate for younger viewers.—
Dennis Harvey,
Variety,
2 May 2025
Adjective
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Starring Jeff Daniels and Laura Linney as the sparring, intellectual parents to two adolescent sons (Jesse Eisenberg and Owen Kline), The Squid and the Whale responds to some of Baumbach’s own experiences as a product of divorce in the 1980s.—
Marley Marius,
Vogue,
30 Apr. 2025
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One of the main jobs of the adolescent human is to pull away from their parents in preparation for adulthood.—
Cyndy Etler,
Hartford Courant,
28 Apr. 2025
Cite this Entry
“Immature.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/immature. Accessed 13 May. 2025.
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