1
as in young
being in the early stage of life, growth, or development
immature frogs are called "tadpoles"
Synonyms & Similar Words
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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
Examples are automatically compiled from online sources to
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Recent Examples of immature
Manipulative or emotionally immature individuals end up exploiting this belief with ease.
—
Mark Travers, Forbes.com, 7 June 2025
Nikki, who can be messy and loud and immature, doesn’t always handle that intensity with grace.
—Kate Erbland, IndieWire, 19 May 2025
Several groups of insects – sawflies, wasps, beetles, flies, and moths – contain species whose immature stages create leaf mines.
—Miri Talabac, Baltimore Sun, 8 May 2025
Stem cells are immature cells that can develop into many different cell types — including neurons that make dopamine.
—Jon Hamilton, NPR, 17 Apr. 2025
See All Example Sentences for immature
Mark Travers, Forbes.com, 7 June 2025
Nikki, who can be messy and loud and immature, doesn’t always handle that intensity with grace.
—Kate Erbland, IndieWire, 19 May 2025
Several groups of insects – sawflies, wasps, beetles, flies, and moths – contain species whose immature stages create leaf mines.
—Miri Talabac, Baltimore Sun, 8 May 2025
Stem cells are immature cells that can develop into many different cell types — including neurons that make dopamine.
—Jon Hamilton, NPR, 17 Apr. 2025
See All Example Sentences for immature
Recent Examples of Synonyms for immature
Adjective
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But the real treat for me was meeting all these young people who are so extraordinary.—
Rebecca Alter,
Vulture,
23 June 2025
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Rowan is a funny, playful, and high-spirited young boy who keeps everyone around him smiling.—
MARE Staff,
Boston Herald,
22 June 2025
Adjective
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There is something of the rat terrier in her small white face, an intensity that has never seemed childish but unnaturally adult.—
Lizz Schumer,
People.com,
17 June 2025
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From baby animals to childish drawings, Labubu to Mary Janes, all things cute have entered the mainstream.—
Gemma A. Williams,
Forbes.com,
17 June 2025
Adjective
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As summer approaches, a juvenile great white shark named Dold has today been detected off the Long Island coastline, marking the latest milestone in a months-long migration that has taken him up the U.S. East Coast.—
Alice Gibbs,
MSNBC Newsweek,
20 June 2025
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On Wednesday, law enforcement officials responded to a report of a missing juvenile resident.—
Muri Assunção,
New York Daily News,
19 June 2025
Adjective
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With its whip-smart satire and adolescent vulnerability, the movie catapulted Williamson into the Hollywood spotlight.—
JP Mangalindan,
Time,
19 June 2025
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Researchers reviewing camera trap footage from a remote island off Panama found that a group of adolescent capuchin monkeys were routinely kidnapping baby howler monkeys and carrying them around like accessories.—
Popular Science Team,
Popular Science,
18 June 2025
Cite this Entry
“Immature.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/immature. Accessed 3 Jul. 2025.
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