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[im-uh-choo r-i-tee, -too r-, -tyoo r-, -chur-]
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noun, plural im·ma·tu·ri·ties for 2.
  1. a state or condition of being immature: the immaturity of one's behavior; the immaturity of a country's technology.
  2. an immature action or attitude.
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Origin of immaturity

1530–40; immature + -ity, probably reflecting Latin immātūritās untimely haste, unripeness
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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Examples from the Web for immaturity

Contemporary Examples

Historical Examples

  • The hand that did it was very young, very immature; but it had the youth and the immaturity of a Master.


    Beatrice Fortescue

  • Of the former class the chief cause is, in a word, immaturity.

  • So long as we fall short of the state of unity we are in the stage of immaturity.

  • The perpetuation of the species must not depend upon the license of immaturity.

  • It is due to ignorance, immaturity, and neglect, like the naughtinesses of children.

    The Heart of Nature

    Francis Younghusband

Word Origin and History for immaturity


1530s, "untimeliness," from Latin immaturitatem (nominative immaturitas) "unripeness," from immaturus (see immature). Meaning "lack of maturity" attested from c.1600.

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Online Etymology Dictionary, © 2010 Douglas Harper