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
When the eggs hatch, the immature stages start feeding.
—
Arricca Elin Sansone, Southern Living, 3 Mar. 2026
Onions From Sets/Bulbs Onion sets are immature bulbs harvested from the previous year's crop and stored over winter for spring planting.
—Barbara Gillette, The Spruce, 27 Feb. 2026
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
See All Example Sentences for immature
Arricca Elin Sansone, Southern Living, 3 Mar. 2026
Onions From Sets/Bulbs Onion sets are immature bulbs harvested from the previous year's crop and stored over winter for spring planting.
—Barbara Gillette, The Spruce, 27 Feb. 2026
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
See All Example Sentences for immature
Recent Examples of Synonyms for immature
Adjective
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Boasting the third-youngest roster in the NBA, the growing pains are going to be unavoidable.—
Roderick Boone,
Charlotte Observer,
9 Apr. 2026
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California lawmakers want schools to include nicotine in drug tests already given to student-athletes, some as young as seventh graders.—
Brady Halbleib,
CBS News,
9 Apr. 2026
Adjective
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The use of childish internet and video-game memes to describe violence is coarse and unworthy of the men and women who go in harm’s way.—
Eliot A. Cohen,
The Atlantic,
1 Apr. 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 11 Apr. 2026.
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