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
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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Szeemann’s two Venice Biennales followed a decade of frantic exhibition-making across the globe, by Szeemann himself and by young professionals proud to call themselves independent curators.—
Daniel Birnbaum,
Artforum,
2 Apr. 2026
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The legislation would require social media platforms to estimate the age of users and exclude obscene content to children 16 years old or younger.—
Angela Palermo,
Idaho Statesman,
2 Apr. 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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Steve Ponto said his daughter means well, but is inexperienced and especially passionate.—
Bridget Fogarty,
jsonline.com,
1 Apr. 2026
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Messi went in as a halftime substitute in the 2-1 victory over Mauritania on March 27, a result against an inexperienced opponent that did not sit well with Scaloni.—
Miami Herald,
Miami Herald,
31 Mar. 2026
Adjective
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Experts estimate thousands of additional uses occur in undisclosed plea deals and juvenile cases.—
Ivan J. Bates,
Baltimore Sun,
4 Apr. 2026
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Also making headlines early April are reports of a juvenile white shark that got caught on a fishing line at Hermosa Beach.—
Paris Barraza,
USA Today,
3 Apr. 2026
Adjective
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His adolescent name-calling and desperate need to emblazon his name on multiple sites are cause for national embarrassment.—
Sun Sentinel Editorial Board,
Sun Sentinel,
5 Apr. 2026
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For example, research shows that adolescent boys are more susceptible to pressure for risk-taking behaviors than girls.—
Amy Morin,
Parents,
3 Apr. 2026
Cite this Entry
“Immature.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/immature. Accessed 7 Apr. 2026.
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