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Synonyms

premature

American  
[pree-muh-choor, -toor, -tyoor, pree-muh-choor, prem-uh-, prem-uh-] / ˌpri məˈtʃʊər, -ˈtʊər, -ˈtjʊər, ˈpri məˌtʃʊər, ˌprɛm ə-, ˈprɛm ə- /

adjective

  1. occurring, coming, or done too soon.

    a premature announcement.

  2. mature or ripe before the proper time.


noun

  1. a premature infant.

premature British  
/ ˌprɛməˈtjʊə, ˈprɛməˌtjʊə /

adjective

  1. occurring or existing before the normal or expected time

  2. impulsive or hasty

    a premature judgment

  3. (of an infant) weighing less than 2500 g (5 1/ 2 lbs) and usually born before the end of the full period of gestation

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of premature

From the Latin word praemātūrus, dating back to 1520–30. See pre-, mature

Explanation

Premature means "not yet ready." Something that is premature arrives early, like a premature baby born before her due date, or the soggy cake you took out of the oven prematurely. Premature is a simple word to break down. Pre means "early" or "before," and mature means "done" or "ready." If a decision is criticized as premature, it means that that decision was made too hastily, and probably would have been different if more time had been taken. If someone dies very young, you might say they died prematurely.

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Vocabulary lists containing premature

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Reports of the 60/40 portfolio’s demise are premature.

From MarketWatch Aug. 5, 2026

It added it was aiming to to support families with feeding difficulties, premature births, delayed milk supply or other challenges, and would support up to 160 mothers.

From BBC Aug. 3, 2026

Fat that accumulates around the abdomen is especially concerning because it is associated with cardiovascular disease, metabolic disorders, and a higher risk of premature death.

From Science Daily Aug. 2, 2026

They said it’s premature for them to discuss what improvements the Games will bring to the 36-year-old swim complex, as those negotiations have not been concluded.

From Los Angeles Times Aug. 1, 2026

As none of the other adults seemed to share Dr. Thatcher's philosophy, the evening came to an early, uneasy end: "A premature death," as Dr. Thatcher phrased it.

From "Jeremy Thatcher, Dragon Hatcher" by Bruce Coville

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