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 This is Nathan’s signature refrain, which speaks volumes about his immature management style. — Rafaela Bassili, Vulture, 4 Aug. 2026 If speed and trust are still presented as a trade-off in 2026, that is a sign of an immature solution, not an inherent limitation. — Susan Laine, Forbes.com, 31 July 2026 Edamame Edamame are young, immature soybeans harvested early. — Eleesha Lockett, Verywell Health, 17 July 2026 The majority of the pest detections have been of immature life stages of the insect such as egg masses. — Lizzie Kane july 9, Sacbee.com, 9 July 2026 See All Example Sentences for immature

Recent Examples of Synonyms for immature

Adjective

Prince Harry was already set to be in Britain next month for an annual ceremony run by WellChild, a charity that cares for seriously ill children and young people in the UK.

— Max Foster, CNN Money, 20 Aug. 2026
The tinted windows looked out onto the courts where Richardson trained some of the best young female players in the Rio Grande Valley, but the glass was one-way, and from outside, nothing that happened in the room was visible.

— Molly Hensley-Clancy, Washington Post, 20 Aug. 2026

Definition of young

Adjective

There will be no lifeguards, and county rangers caution that the beach, like many along the Northern California coast, can have rip currents that pose a threat to inexperienced swimmers.

— Paul Rogers, Mercury News, 13 Aug. 2026
So Harbaugh created this competition of two inexperienced kickers.

— Pat Leonard, New York Daily News, 13 Aug. 2026

Definition of inexperienced

Adjective

Once dismissed as overly sweet, hyper-feminine, or adolescent, the best gourmand fragrances have since evolved.

— Danielle James, Vogue, 14 Aug. 2026
If developmental science justifies treating adolescent offenders differently from adults, then that same science should also inform how Connecticut recognizes, protects, and supports adolescent victims.

— Keith Wortz, Hartford Courant, 13 Aug. 2026