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See more synonyms for inconsiderate on Thesaurus.com
  1. without due regard for the rights or feelings of others: It was inconsiderate of him to keep us waiting.
  2. acting without consideration; thoughtless; heedless.
  3. overhasty; rash; ill-considered: slovenly, inconsiderate reasoning.
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Origin of inconsiderate

First recorded in 1425–75; late Middle English word from Latin word inconsīderātus. See in-3, considerate
Related formsin·con·sid·er·ate·ly, adverbin·con·sid·er·ate·ness, in·con·sid·er·a·tion, noun


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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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Examples from the Web for inconsideration

Historical Examples

  • And I find all just, all right, on your side; and all impatience, all inconsideration on mine.

    Clarissa, Volume 3 (of 9)

    Samuel Richardson

  • But these, whatever else may be thought of them, are not the errors of haste and inconsideration.

  • It hung upon me, indeed, some time, said he; but I was full of spirit and inconsideration.

  • Inconsideration and vanity have been the joint cause of your malady.

  • I might even be accused of jealousy, inconsideration for his future, and a lack of faith in the man.

British Dictionary definitions for inconsideration


  1. lacking in care or thought for others; heedless; thoughtless
  2. rare insufficiently considered
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Derived Formsinconsiderately, adverbinconsiderateness or inconsideration, noun
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

Word Origin and History for inconsideration


1520s, from Late Latin inconsiderationem (nominative inconsideratio) "inconsiderateness," from inconsideratus (see inconsiderate).

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late 15c., "done thoughtlessly," literally "not properly considered," from Latin inconsideratus "headstrong, unadvised, thoughtless," from in- "not, opposite of" (see in- (1)) + consideratus (see consider). Related: Inconsiderately; inconsiderateness.

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Online Etymology Dictionary, © 2010 Douglas Harper