mature
Americanadjective
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complete in natural growth or development, as plant and animal forms.
a mature rose bush.
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ripe, as fruit, or fully aged, as cheese or wine.
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fully developed in body or mind, as a person.
She was a mature woman who took her family responsibilities seriously.
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noting or pertaining to an adult who is middle-aged or older (used euphemistically).
discrimination against mature applicants.
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pertaining to or characteristic of full development.
a mature appearance; fruit with a mature softness.
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completed, perfected, or elaborated in full by the mind.
mature plans.
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(of an industry, technology, market, etc.) no longer developing or expanding; having little or no potential for further growth or expansion; exhausted or saturated.
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intended for or restricted to adults, especially by reason of explicit sexual content or the inclusion of violence or obscene language.
mature movies.
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composed of adults, considered as being less susceptible than minors to explicit sexual content, violence, or obscene language, as of a film or stage performance.
for mature audiences only.
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Finance. having reached the limit of its time; having become payable or due.
a mature bond.
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Medicine/Medical.
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having attained definitive form or function, as by maturation of an epithelium from a basal layer.
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having attained the end stage of a normal or abnormal biological process.
a mature boil.
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Geology. (of a landscape) exhibiting the stage of maximum topographical diversity, as in the cycle of erosion of a land surface.
verb (used with object)
adjective
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relatively advanced physically, mentally, emotionally, etc; grown-up
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(of plans, theories, etc) fully considered; perfected
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due or payable
a mature debenture
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biology
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fully developed or differentiated
a mature cell
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fully grown; adult
a mature animal
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(of fruit, wine, cheese, etc) ripe or fully aged
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(of a river valley or land surface) in the middle stage of the cycle of erosion, characterized by meanders, maximum relief, etc See also youthful old
verb
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to make or become mature
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(intr) (of notes, bonds, etc) to become due for payment or repayment
Usage
What does mature mean? If a person is mature, they act grown-up. If an animal is mature, it has reached adulthood. If a fruit is mature, it’s ripe. If a game or movie is intended for a mature audience, it means it’s for adults because it’s inappropriate for kids. Mature has many meanings in addition to the common ones above. It is most commonly used as an adjective, but it can also be a verb meaning to become mature or to make mature. Example: Some of my students are very mature and responsible, but the rest of them act like preschoolers.
Synonym Usage
See ripe.
Other Word Forms
Derived Forms
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overmaturenessnoun
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semimatureadjective
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maturernoun
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overmaturelyadverb
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nonmaturenessnoun
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nonmatureadjective
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nonmaturelyadverb
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well-maturedadjective
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unmatureadjective
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unmaturelyadverb
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self-maturedadjective
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overmatureadjective
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unmaturingadjective
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maturenessnoun
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maturementnoun
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semimaturenessnoun
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maturelyadverb
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unmaturedadjective
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half-maturedadjective
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semimaturelyadverb
Conjugated Forms
Present
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has maturedperfect 3rd person singular
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have maturedperfect
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are maturingprogressive
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have been maturingperfect progressive
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has been maturingperfect progressive 3rd person singular
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is maturingprogressive 3rd person singular
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am maturingprogressive 1st person singular
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maturingparticiple
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maturessingular 3rd person
Past
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had maturedperfect
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was maturingprogressive singular
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were maturingprogressive plural
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had been maturingperfect progressive
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maturedsimple
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maturedparticiple
Future
Etymology
Origin of mature
First recorded in 1400–50; late Middle English, from Latin mātūrus “ripe, timely, early”; akin to manes, matutinal
Explanation
Someone who is mature acts grown up, like an adult. However, when one sister says to another, "That's so mature," she's usually using the word sarcastically, because her sister has done something very immature, like sticking out her tongue. The adjective mature doesn't only describe advancing age, although the residents of a senior citizens' home could definitely be considered mature. Anything that is fully developed, like an aged cheese or bottle of wine, can also be called mature. The word can also refer to something that is only appropriate for people who are considered legal adults, like the movie that is for "mature audiences only."
Vocabulary lists containing mature
Ancient Wisdom: Synonyms for "Old"
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Guts
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Class Act
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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.
We’ve heard this argument before: Mature quantum computers could lead to a paradigm shift, offering speed-ups in areas such as drug discovery and financial modeling.
From Barron's • Dec. 11, 2025
Mature student Joe Vincent, 33, lives at home in Devon with his partner and baby while studying in Plymouth for a masters degree in pharmacy from the University of Bath, over 130 miles away.
From BBC • Jun. 1, 2025
Mature eggs could be fertilized immediately after acquisition, while immature eggs needed to be matured before fertilization.
From Science Daily • Nov. 15, 2024
Mature trees are critical in reducing urban heat, pollution, and flooding.
From Seattle Times • May 8, 2024
Mature and ladylike at just fourteen years old, she was a person on a mission: she seemed to know exactly where she was going in life, with a sort of inward direction driving her.
From "While the World Watched: A Birmingham Bombing Survivor Comes of Age during the Civil Rights Movement" by Carolyn Maull McKinstry
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
