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

Synonyms & Similar Words

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

Synonyms & Similar Words

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 Look for eggplants that are smaller and immature, that are firm, smooth-skinned and heavy for their size — full-size and puffy ones can be bitter and have harder seeds. — Kate Bradshaw, Mercury News, 7 July 2026 In immature stages, the insects can be controlled with insecticidal soap or horticultural oil. — Madeline Buiano, Martha Stewart, 7 July 2026 In practice, portions of the automation framework still feel slightly immature. — Michael Lydick, PC Magazine, 29 June 2026 These are the immature stages of small brown moths. — Tom MacCubbin, The Orlando Sentinel, 27 June 2026 See All Example Sentences for immature

Recent Examples of Synonyms for immature

Adjective

This might help teach younger generations how to hunt, Higuera says.

— Jackie Flynn Mogensen, Scientific American, 23 July 2026
Miami-Dade lost roughly 10,000 residents last year — an exodus that experts say skews young.

— Max Klaver, Miami Herald, 23 July 2026

Definition of young

Adjective

The basics of investing are set out in accessible, but not childish, terms, and the little tutorials are free of any hint of edutainment or corniness.

— Marie Sapirie, Forbes.com, 20 July 2026
The portrait of Musk that emerges here is that of a childish, terminally online man who desires to eliminate the messiness of contemporary life for a more rigid order.

— The New Yorker, New Yorker, 13 July 2026

Definition of childish

Adjective

After striking up conversation about their individual side projects, Kern lent his app’s base server to an inexperienced Coffee.

— Sophie Lindberg, Kansas City Star, 14 July 2026
In Shipwrecked, crew members suggest that Schettino was a relatively new and inexperienced captain.

— Britt Hayes, Entertainment Weekly, 14 July 2026

Definition of inexperienced

Adjective

Richard Sher’s panel of Tonya Bana, Tyrone Keys, Rick Vatz and Sheila Dixon discuss juvenile violence in Baltimore.

— Bill Wachsberger, Baltimore Sun, 18 July 2026
My client was a juvenile charged in adult court who struggled with significant mental health issues and limited comprehension.

— Schnelle Tonge, Sun Sentinel, 16 July 2026