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
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Kruger had been an Akin superfan ever since his breakout Head-On — a gritty, violent love story about a young German-Turkish woman trying to break free of her religious, restrictive family — which won Berlin’s Golden Bear in 2004.—
Scott Roxborough,
HollywoodReporter,
17 May 2025
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The doctors had started collaborating in 2023, working on ways to correct genetic mutations in young children with ultra-rare diseases.—
Vanessa Etienne,
People.com,
17 May 2025
Adjective
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The angular clock hands and classic-leaning clock face protect this personality piece from becoming gimmicky or childish, and instead remaining sophisticated and tasteful.—
Julia Harrison,
Architectural Digest,
31 Mar. 2025
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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
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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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
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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
Cite this Entry
“Immature.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/immature. Accessed 27 May. 2025.
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