English Reference
noun

maturity

n.
US /məˈtʃʊɹəti/ UK /mətʃˈɔːɹɪti/ ma·tu·ri·ty UK spelling maturities

  1. 01 B2 Upper Intermediate

    the quality of behaving in a sensible and adult way.

    the state of being fully developed in character or emotional intelligence, typically associated with adult behavior.

    Simple

    He showed great maturity by staying calm during the difficult argument.

    In context

    The candidate demonstrated a level of emotional maturity that far exceeded her years, handling the aggressive questioning with poise and professional distance.

    Usage

    uncountable in this sense

    immaturitychildishness
  2. 02 B2 Upper Intermediate Science

    the state of being fully grown or developed physically.

    the stage of life at which an organism has reached full physical development or is capable of reproduction.

    Simple

    The trees reach maturity after about twenty years of growth.

    In context

    The researchers monitored the colony until the individuals reached sexual maturity, at which point the migration patterns shifted significantly.

    Usage

    uncountable in biological contexts

    full growthripeness
  3. 03 C1 Advanced TechnicalFormal Law

    the time when an investment or insurance policy is ready to be paid back.

    the end of the period for which a financial instrument is issued, at which point the principal is due to be repaid.

    Simple

    The bond will pay out its full value when it reaches maturity in five years.

    In context

    Upon reaching maturity, the long-term treasury bonds were liquidated to provide the necessary capital for the firm's planned expansion into emerging markets.

    Usage

    often used with the preposition 'at'

Adult vultures usually reach sexual maturity between the ages of five and seven, and produce only one chick every year or two.

BBC News· 12 Aug 2026

Brook has not shown he has the maturity to do that part of the job, meaning Joe Root was the only candidate.

BBC News· 20 Aug 2026

From Middle English maturitee, maturyte, from Old French maturité, from Latin mātūritātem. By surface analysis, mature + -ity.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin Latin maturitas
Level B2 · Upper Intermediate
Frequency Frequent
Updated