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
Hand-weeding or applying appropriate herbicides when the weedy plants are young and immature will give you the best results.
—
Mary Marlowe Leverette, Southern Living, 30 Nov. 2025
The financial services industry has been slow to recognize this shift, often dismissing Gen Z’s preferences as temporary or immature.
—Nick Molnar, Fortune, 13 Nov. 2025
Among them are beer beans, vegetable beans and green, edible, immature or garden soybeans.
—Tammy Algood, Southern Kitchen, 11 Nov. 2025
After potting, pick off any flowers or immature fruit.
—Lauren Landers, Better Homes & Gardens, 4 Nov. 2025
See All Example Sentences for immature
Recent Examples of Synonyms for immature
Adjective
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Both the barn owl and the center’s 14-year-old eastern screech owl were rescued as young animals.—
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That is a recipe for political disruption that defies classic lines between Republicans and Democrats and between conservatives and liberals − particularly among younger voters who have less history with and allegiance to either party.—
Adjective
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The brand is seeing an upswing post-pandemic, as these childish styles, long favored in Asia-Pacific countries like Japan and South Korea, become increasingly popular in China and the West.—
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She’s fallen under the sway of a fashionable worldview in which logic is paramount, and the realm of emotion and magic and even dæmons is just childish fancy.—
Adjective
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Jokic didn’t overtake Jamal Murray as Denver’s leading scorer until their seventh game of the season, after a 33-point performance Wednesday against a Miami Heat frontcourt that was woefully undersized and inexperienced the instant Bam Adebayo exited with a foot injury.—
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Henderson has struggled in that role as a rookie, and Jennings is inexperienced at the pro level.—
Adjective
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According to her campaign website, her priorities include protecting parks, transit services, aging and disability services and veterans programs, as well as pursuing criminal justice and juvenile correction reform.—
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As of Monday, the juvenile victim was in the hospital and still receiving medical treatment for their injuries.—
Adjective
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The Centers for Disease Control and Prevention (CDC) announced major changes to its childhood and adolescent immunization schedule, an age-by-age guide for health care providers on when to vaccinate children to protect them from preventable diseases.—
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The show channels a certain energetic, zany sense of humor viewers could recognize from their own adolescent friendships and antics, culminating in a five-season run and a 2021–2023 revival on Paramount+.—
Cite this Entry
“Immature.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/immature. Accessed 13 Jan. 2026.
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