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

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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

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Recent Examples of immature Even Stevens was never afraid to go all out for its constant string of gags and jokes, led by Shia LaBeouf as the immature prankster Louis Stevens. — Christian Holub, Entertainment Weekly, 21 June 2026 The first thing a stressed cucumber plant will do is drop blossoms and immature fruit, says Gorlin-Crenshaw. — Sj McShane, Martha Stewart, 18 June 2026 The repetition accounts for immature pollen grains and mediates weather challenges by offering multiple opportunities for the pollen to transfer to the stigma. — Megan Hughes, Better Homes & Gardens, 18 June 2026 Infant botulism is a rare but serious illness that occurs in babies under age 1, whose gut microbiomes are immature. — ABC News, 13 June 2026 See All Example Sentences for immature

Recent Examples of Synonyms for immature

Adjective

Be vigilant about never leaving young children and pets in vehicles without supervision, especially during periods of intense heat, as car interiors can quickly become extremely hot.

— NC Weather Bot, Charlotte Observer, 9 July 2026
As the sounds of fighting increased nearby, Al-Zaharnah decided to leave with his wife and youngest son.

— Bilal Shbeir, Los Angeles Times, 9 July 2026

Definition of young

Adjective

Their ideas about it were often steeped in stereotypes suggesting that Buddhists were irrational and childish in their thinking.

— Livia Gershon, JSTOR Daily, 7 July 2026
While there is absolutely nothing childish about the property, there are crib and highchairs available, children’s menus at the hotel’s restaurant, and babysitting services that can be arranged through a third party.

— Condé Nast, Condé Nast Traveler, 4 July 2026

Definition of childish

Adjective

Hillmann said that the high percentage of inexperienced foreigners today makes the Pamplona bull runs particularly dangerous.

— ABC News, ABC News, 6 July 2026
Leaders in at least three counties have publicly spoken out against Alfonso as being too inexperienced for the job and questioned Duffy’s influence.

— Scott Bauer, Los Angeles Times, 6 July 2026

Definition of inexperienced

Adjective

The pipe burst released about 130 million gallons of water, trapped several workers, killed hundreds of juvenile Chinook salmon and damaged the New Colgate Powerhouse.

— Daniel Lempres, Sacbee.com, 3 July 2026
One of the e-bike riders, a juvenile boy, was taken to the hospital with life-threatening injuries and died shortly thereafter, the release said.

— Rose Evans, Idaho Statesman, 3 July 2026

Definition of juvenile

Adjective

Additionally, occasional rule-breaking and defiance are considered a normal part of child and adolescent development.

— Elizabeth Dowdell, The Conversation, 6 July 2026
Ultimately, this visible lump is a permanent record of a hormonal change, primarily designed to be heard, reflecting the body's adolescent effort to project a larger presence.

— Scott Travers, Forbes.com, 5 July 2026