IMMATURE Synonyms: 101 Similar and Opposite Words

immature

adjective

ˌi-mə-ˈchu̇r

Definition of immature

as in young

being in the early stage of life, growth, or development immature frogs are called "tadpoles"

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

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

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

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of immature Top 5 most iconic college live mascot moments Reggie was an immature male and the zoo believed he was injured from a collision with a truck. — Maddie Rhodes, USA Today, 9 Sep. 2026 Harvesting too early on immature beds also affects the maturation of the rice kernels over time, officials said. — Frank Vaisvilas, jsonline.com, 9 Sep. 2026 Tests revealed that Matias had neuroblastoma, a rare childhood cancer that develops from immature nerve cells, per the Cleveland Clinic. — Angelique Brenes, PEOPLE, 1 Sep. 2026 There’s nothing wrong with holding on to childhood and being a little immature from time to time. — Loren Savini, Allure, 22 Aug. 2026 See All Example Sentences for immature

Recent Examples of Synonyms for immature

Adjective

In the film, Thị Mầu is a gifted young beauty hemmed in by rigid custom and the demands of her family.

— Naman Ramachandran, Variety, 13 Oct. 2026
The Child Mind Institute notes that losing a close friendship can be emotionally painful for young people, and urges adults to take those experiences seriously rather than brushing them off.

— Ashley Lynch, Sacbee.com, 12 Oct. 2026

Definition of young

Adjective

These experienced and skilled athletes, who are often 22 or 23 years old, are appealing to coaches, especially when compared with inexperienced and physically less developed freshmen.

— Michael McCann, Sportico.com, 14 Oct. 2026
Hafley also cautioned against placing the sole blame on Willis, who started just the 11th game of his career and is leading a young offense with mostly inexperienced receivers who are still developing chemistry.

— CBS News, CBS News, 13 Oct. 2026

Definition of inexperienced

Adjective

In her Venice job, the majority of people had been in foster care, juvenile hall or prison.

— Steve Lopez, Los Angeles Times, 10 Oct. 2026
One 16-year-old suspect was transported to a juvenile detention center, while the four adults were taken to the Frederick County Adult Detention Center.

— CBS News, CBS News, 7 Oct. 2026

Definition of juvenile

Adjective

Changes in the adolescent brain make teenagers increasingly attentive to their social worlds, says Wayne State University psychology professor Hannah Schacter.

— Ashley Lynch, Sacbee.com, 12 Oct. 2026
At present, the autonomous vehicle is an adolescent product in more ways than one.

— Molly Fischer, New Yorker, 12 Oct. 2026