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
Boycotting a State of the Union is immature and inappropriate.
—
Bobby Zirkin, Baltimore Sun, 26 Feb. 2026
Edamame are young, immature soybeans.
—Amy Brownstein, Verywell Health, 26 Feb. 2026
The film’s vintage patina doesn’t detract from rising actor Will Price’s confident performance as an immature mobster who prefers bitcoin to stacks of Benjamins.
—Amy Nicholson, Los Angeles Times, 30 Jan. 2026
Unlike older drugs, this formula safely accounts for a baby’s immature metabolism.
—Kwesi Akonu Adom Mensah Forson, The Conversation, 26 Jan. 2026
See All Example Sentences for immature
Bobby Zirkin, Baltimore Sun, 26 Feb. 2026
Edamame are young, immature soybeans.
—Amy Brownstein, Verywell Health, 26 Feb. 2026
The film’s vintage patina doesn’t detract from rising actor Will Price’s confident performance as an immature mobster who prefers bitcoin to stacks of Benjamins.
—Amy Nicholson, Los Angeles Times, 30 Jan. 2026
Unlike older drugs, this formula safely accounts for a baby’s immature metabolism.
—Kwesi Akonu Adom Mensah Forson, The Conversation, 26 Jan. 2026
See All Example Sentences for immature
Recent Examples of Synonyms for immature
Adjective
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In the 19th, Grace Panetta studied the answers in another Navigator focus group, from young women worried about economic ups and downs.—
David Weigel,
semafor.com,
26 Mar. 2026
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The Panthers have hinted at the desire to draft a young QB to develop behind Young for the long haul, and that outlook hasn’t changed with the arrival of Pickett.—
Mike Kaye
March 26,
Charlotte Observer,
26 Mar. 2026
Adjective
-
Those leaders who ignore or flout the law aren’t merely unethical but fatally arrogant, putting their childish willfulness over the wisdom of generations.—
David Brooks,
The Atlantic,
25 Mar. 2026
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However, this is a childish fantasy.—
Dr. Michael Good,
Hartford Courant,
25 Mar. 2026
Adjective
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Mullin will also face congressional Democrats’ wrath as lawmakers on Capitol Hill have already begun to investigate DHS for the massive contracts to individuals and companies that were inexperienced, had connections to Noem’s staff, or contained other irregularities.—
Anna Giaritelli,
The Washington Examiner,
27 Mar. 2026
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Schaeffer won over most of the Rockies players quickly, but, fielding a young, inexperienced team, Colorado limped toward the finish line, going 4-21 in September.—
Patrick Saunders,
Denver Post,
22 Mar. 2026
Adjective
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Over a two-year period, researchers at the Shark Lab used drones to study more than two dozen beaches up and down the California coastline and found juvenile white sharks congregating at two spots in southern Santa Barbara County and central San Diego County.—
Clara Harter,
Los Angeles Times,
27 Mar. 2026
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The two offenders were sentenced to two years of probation and 60 hours of community service each − one hour for each victim, Judge Leonard Brown said − meaning they will not be put into a juvenile detention facility, while technically remaining under the supervision of the juvenile justice system.—
Alyssa Goldberg,
USA Today,
26 Mar. 2026
Adjective
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Some of her adolescent outbursts and antics (that were so delicious to play).—
Stephen Schaefer,
Boston Herald,
29 Mar. 2026
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Any full-length conversation between Tua Tagovailoa and his adolescent self would, eventually, disclose details of the dark days.—
Daniel Flick - The Atlanta Journal-Constitution,
AJC.com,
25 Mar. 2026
Cite this Entry
“Immature.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/immature. Accessed 1 Apr. 2026.
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