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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:

Also, for those under age 59½, distributions can trigger a 10% premature distribution penalty on top of the taxes.

From MarketWatch Jul. 19, 2026

Decades of research have linked this eating pattern to a lower risk of cardiovascular disease, type 2 diabetes, cognitive decline, and premature death.

From Science Daily Jul. 18, 2026

But a Federal High Court judge in Bayelsa, Ayo Emmanuel, ruled that the suit was "premature and incompetent," adding that the allegations against the oil giant were statute-barred under Nigerian law.

From Barron's Jul. 17, 2026

Loneliness has been linked to higher risks of cardiovascular disease, dementia, stroke, depression, anxiety and premature death.

From The Wall Street Journal Jul. 10, 2026

Emma experienced premature labor pains the day Charles wrote the memorial, but then the pains stopped.

From "Charles and Emma: The Darwins' Leap of Faith" by Deborah Heiligman

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