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
Children and adults pick up an avalanche of unreliable information on social media, and children may process it with immature judgment.
—
Sun Sentinel Editorial Board, Sun Sentinel, 22 Apr. 2025
Yet that flies in the face of the basis for the bill — the substantial evidence documenting that the brains of young people are immature and thus unable to control their impulses.
—Robert Barton, Baltimore Sun, 13 Apr. 2025
The treatment was derived from human embryonic stem cells, which researchers had coaxed into becoming immature brain cells called neuron progenitors.
—Jon Hamilton, NPR, 17 Apr. 2025
Despite her experiences, Ellie is still emotionally immature, seeing independence as its own authority.
—Mary McNamara, Los Angeles Times, 7 Apr. 2025
See All Example Sentences for immature
Sun Sentinel Editorial Board, Sun Sentinel, 22 Apr. 2025
Yet that flies in the face of the basis for the bill — the substantial evidence documenting that the brains of young people are immature and thus unable to control their impulses.
—Robert Barton, Baltimore Sun, 13 Apr. 2025
The treatment was derived from human embryonic stem cells, which researchers had coaxed into becoming immature brain cells called neuron progenitors.
—Jon Hamilton, NPR, 17 Apr. 2025
Despite her experiences, Ellie is still emotionally immature, seeing independence as its own authority.
—Mary McNamara, Los Angeles Times, 7 Apr. 2025
See All Example Sentences for immature
Recent Examples of Synonyms for immature
Adjective
-
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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Star Wars Day is Sunday: Celebrate May the 4th with these deals A parent's guide to 'Thunderbolts*': Is new Marvel movie OK for young kids?—
Brian Truitt,
USA Today,
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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McManus said the boy is also facing charges of terrorism and is currently being held at a local juvenile detention facility.—
Chris Spargo,
People.com,
15 May 2025
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The three juvenile suspects are also charged with murder, attempted armed robbery and second-degree burglary.—
Audrey Conklin,
FOXNews.com,
13 May 2025
Adjective
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The teenage triggerman was aiming at an adolescent rival who had punched him moments earlier, police said.—
Emma Seiwell,
New York Daily News,
13 May 2025
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One of a handful of practicing physicians in the state legislature, Weber Pierson is leaning heavily on her experience as a pediatric and adolescent gynecologist who treats children with reproductive birth defects — one of only two in Southern California.—
Kaiser Health News,
San Diego Union-Tribune,
13 May 2025
Cite this Entry
“Immature.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/immature. Accessed 20 May. 2025.
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