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
The closest anyone has come to success for eggs has been very primitive human egg cells that are too immature to be fertilized.
—
Rob Stein, NPR, 30 Sep. 2025
The researchers produced 82 functional human oocytes, or immature egg cells, which then underwent fertilization in the lab.
—Katie Hunt, CNN Money, 30 Sep. 2025
Our challenge is to get the immature plant mature enough to get through summer.
—Brandee Gruener, Southern Living, 27 Sep. 2025
Edamame, Soybeans, and Soy Products Edamame is an immature soybean in green pods.
—Merve Ceylan, Health, 26 Sep. 2025
See All Example Sentences for immature
Rob Stein, NPR, 30 Sep. 2025
The researchers produced 82 functional human oocytes, or immature egg cells, which then underwent fertilization in the lab.
—Katie Hunt, CNN Money, 30 Sep. 2025
Our challenge is to get the immature plant mature enough to get through summer.
—Brandee Gruener, Southern Living, 27 Sep. 2025
Edamame, Soybeans, and Soy Products Edamame is an immature soybean in green pods.
—Merve Ceylan, Health, 26 Sep. 2025
See All Example Sentences for immature
Recent Examples of Synonyms for immature
Adjective
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The Special Supplemental Nutrition Program for Women, Infants, and Children, or WIC, offers food benefits, breastfeeding services and nutrition education to 65,000 Arkansas women, infants and children younger than five.—
Arkansas Online,
Arkansas Online,
26 Oct. 2025
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Every young solo traveler should heed these nine tips.—
Amelia McBride,
Travel + Leisure,
26 Oct. 2025
Adjective
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She’s fallen under the sway of a fashionable worldview in which logic is paramount, and the realm of emotion and magic and even dæmons is just childish fancy.—
Lev Grossman,
The Atlantic,
23 Oct. 2025
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Back then, some of my actions were definitely a little childish, for sure.—
Jennifer Zhan,
Vulture,
21 Oct. 2025
Adjective
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But let’s face it, the Red Wings have looked a bit inexperienced at times so far, too.—
Max Bultman,
New York Times,
26 Oct. 2025
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The helmers cycle through a year’s worth of seasons for Zhenya and Anatolij Pilipenko, inexperienced farmers who envisioned a new life for themselves and their two young daughters.—
Sheri Linden,
HollywoodReporter,
24 Oct. 2025
Adjective
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According to the outlet, Sears was airlifted to a hospital following injuries sustained in the crash, while a juvenile passenger sitting in the back was also taken for medical treatment.—
David Chiu,
PEOPLE,
27 Oct. 2025
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Today, much of the building sits empty in north Charlotte, and local teenagers charged with crimes are sent to a state juvenile facility in Cabarrus County.—
Charlotte Observer,
Charlotte Observer,
24 Oct. 2025
Adjective
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The Biden Administration's contrary position depended on the obvious fallacy that providing testosterone to treat a boy's endocrine disorder is the 'same treatment' as using the drug to disrupt the normal physical development of an adolescent girl suffering from psychological distress.—
Mandy Taheri,
MSNBC Newsweek,
24 Oct. 2025
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Did an adolescent Bruce really have to walk into bars and collect his father, at the urging of his mother?—
Andy Greene,
Rolling Stone,
24 Oct. 2025
Cite this Entry
“Immature.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/immature. Accessed 30 Oct. 2025.
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