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
Levy also noted, however, that the complaints about Muckey’s behavior related to his early years with the Philharmonic, when multiple members of the orchestra described him as immature and irresponsible.
—
Sammy Sussman, Vulture, 8 Aug. 2025
Plus, Wendy and the hybrids are all children placed into adult robot bodies, resulting in adult actors acting like immature children, which can get grating.
—Dave Nemetz, TVLine, 6 Aug. 2025
An immature human oocyte seen down a microscope.
—Ian Randall, MSNBC Newsweek, 4 Aug. 2025
Kukushkin and his colleagues began by growing human kidney cells and immature nerve cells in isolation.
—Claire L. Evans, Quanta Magazine, 30 July 2025
See All Example Sentences for immature
Sammy Sussman, Vulture, 8 Aug. 2025
Plus, Wendy and the hybrids are all children placed into adult robot bodies, resulting in adult actors acting like immature children, which can get grating.
—Dave Nemetz, TVLine, 6 Aug. 2025
An immature human oocyte seen down a microscope.
—Ian Randall, MSNBC Newsweek, 4 Aug. 2025
Kukushkin and his colleagues began by growing human kidney cells and immature nerve cells in isolation.
—Claire L. Evans, Quanta Magazine, 30 July 2025
See All Example Sentences for immature
Recent Examples of Synonyms for immature
Adjective
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Roald Dahl's Matilda the Musical Roald Dahl's beloved 1988 novel about a young girl named Matilda with telekinetic powers has gotten its fair share of adaptations over the years.—
Jacqueline Weiss,
PEOPLE,
7 Sep. 2025
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Nevertheless, the Phillies and Marlins teams were aware that few things are as exciting for a young fan as getting a home run ball.—
Chandelis Duster,
NPR,
7 Sep. 2025
Adjective
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He's gone on numerous rants about the 26-year-old, most recently calling him childish for his actions in Dallas' preseason finale.—
Kevin McCormick,
MSNBC Newsweek,
28 Aug. 2025
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That’s the mark of a public servant who brings intellectual depth to his role, not someone deserving of childish attacks.—
Aegis reader commentary,
Baltimore Sun,
21 Aug. 2025
Adjective
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Since the election, Reform has tried to refashion itself from a protest vote party to one that could govern – untried and inexperienced, but ready to step in if the Labour Party buckles under its own blunders, and the once-mighty Conservatives drift further into political irrelevance.—
Christian Edwards,
CNN Money,
7 Sep. 2025
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His emergence has enabled a talented, inexperienced team find its early identity.—
Patrick Z. McGavin,
Chicago Tribune,
5 Sep. 2025
Adjective
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The effort led Gajić to find two kitefin sharks, one baby and one juvenile, the study said.—
Aspen Pflughoeft,
Miami Herald,
8 Sep. 2025
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Patton had been working on a gravel road with his tractor near Mulberry Mountain when a 70-pound juvenile black bear attacked him, AGFC officials said, per the outlets.—
Kimberlee Speakman,
PEOPLE,
6 Sep. 2025
Adjective
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Asha Patton-Smith, MD, a child and adolescent psychiatrist at Kaiser Permanente in Virginia, emphasizes paying attention to the emotional toll.—
Adrienne Farr,
Parents,
5 Sep. 2025
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Researchers can investigate coping strategies and resources that empower Black and Hispanic teens and their parents, and evaluate their effectiveness in supporting adolescent well-being.—
Alvin Thomas,
The Conversation,
5 Sep. 2025
Cite this Entry
“Immature.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/immature. Accessed 11 Sep. 2025.
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