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
Roasted Edamame Beans Edamame are immature soybeans that are loaded with protein.
—
Jillian Kubala, Health, 8 Apr. 2025
Peripheral blood smear: A sample of your blood is examined under a microscope to look for abnormal cells, including immature cells that shouldn’t normally be in the bloodstream.
—Health, 24 May 2025
Concluding the movie as a surprisingly mature teenager is a fascinating transition into a decade-plus of Cruise playing immature grown-ups.
—Wesley Stenzel, EW.com, 24 May 2025
Starting in September, and over a period of six months, the researchers saw four other immature males—two subadults and two juveniles—carrying around howler infants.
—Nell Greenfieldboyce, NPR, 19 May 2025
See All Example Sentences for immature
Jillian Kubala, Health, 8 Apr. 2025
Peripheral blood smear: A sample of your blood is examined under a microscope to look for abnormal cells, including immature cells that shouldn’t normally be in the bloodstream.
—Health, 24 May 2025
Concluding the movie as a surprisingly mature teenager is a fascinating transition into a decade-plus of Cruise playing immature grown-ups.
—Wesley Stenzel, EW.com, 24 May 2025
Starting in September, and over a period of six months, the researchers saw four other immature males—two subadults and two juveniles—carrying around howler infants.
—Nell Greenfieldboyce, NPR, 19 May 2025
See All Example Sentences for immature
Recent Examples of Synonyms for immature
Adjective
-
Toby Gilroy and Finn Elliott died during a storm after taking their boat to rescue Finn’s younger brother, Kieran Elliot, who was at the towering caves that border the bay.—
Monica Mercuri,
Forbes.com,
10 June 2025
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While riggers hung massive lights and construction workers assembled the stage on a grueling day before Tyler Childers‘ June 2024 concert at the United Center, three young locals showed up: Cheryl, Larry and Ted.—
Steve Knopper,
Billboard,
9 June 2025
Adjective
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Yolanda’s wake left hundreds of orphans, but even those like Ubaldo whose family had survived had their childish innocence ripped away.—
Charlie Campbell,
Time,
5 June 2025
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The top is tufted, and the slightly pleated skirt gives it just enough charm without treading into childish territory.—
Yelena Moroz Alpert,
Architectural Digest,
24 May 2025
Adjective
-
From working in the kitchen at juvenile detention to enrolling in culinary school between prison stints, Carter knew his passion could become his purpose.—
Kizzy Cox,
Essence,
4 June 2025
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Bean, 84, has been superintendent of the juvenile detention center since 1972.—
Paige Pfleger,
ProPublica,
2 June 2025
Adjective
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Nothing rings more true than the trope of the restless adolescent.—
Stephanie Sengwe,
People.com,
7 June 2025
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Dilly Dally, an adolescent loggerhead, first arrived at the LMC back in January after being attacked by a predator.—
Alana Wise,
NPR,
6 June 2025
Cite this Entry
“Immature.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/immature. Accessed 17 Jun. 2025.
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