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[dis-in-tuh-res-tid, -tri-stid] /dɪsˈɪn təˌrɛs tɪd, -trɪ stɪd/
unbiased by personal interest or advantage; not influenced by selfish motives:
a disinterested decision by the referee.
not interested; indifferent.
Origin of disinterested
1605-15; dis-1 + interested
Related forms
disinterestedly, adverb
disinterestedness, noun
nondisinterested, adjective
Can be confused
disinterested, uninterested (see usage note at the current entry)
1. impartial, neutral, unprejudiced, dispassionate. See fair1 .
1. partial, biased.
Usage note
Disinterested and uninterested share a confused and confusing history. Disinterested was originally used to mean “not interested, indifferent”; uninterested in its earliest use meant “impartial.” By various developmental twists, disinterested is now used in both senses. Uninterested is used mainly in the sense “not interested, indifferent.” It is occasionally used to mean “not having a personal or property interest.”
Many object to the use of disinterested to mean “not interested, indifferent.” They insist that disinterested can mean only “impartial”: A disinterested observer is the best judge of behavior. However, both senses are well established in all varieties of English, and the sense intended is almost always clear from the context. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for disinterestedly
Historical Examples
  • She challenged history to adduce a case where a woman had wielded so much power so wisely and so disinterestedly.

    Lola Montez Edmund B. d'Auvergne
  • There was a general inspection, during which the boys looked on disinterestedly.

    Blue Bonnet in Boston Caroline E. Jacobs
  • I can see that you love Maria Dovizio so disinterestedly that you prefer her happiness to your own.

    Romance of Roman Villas Elizabeth W. (Elizbeth Williams) Champney
  • Lady Leonora also wished extremely, and disinterestedly, for your company.

  • "I should recommend a copy-book on a—h'm—safe and certain part," said the Reverend John disinterestedly.

    Stalky & Co. Rudyard Kipling
  • They loved and were beloved—openly, devotedly, sincerely, disinterestedly.

    Heart Martin Farquhar Tupper
  • Lucius respects my father too much for that—and too disinterestedly.

    The Lion's Brood Duffield Osborne
  • Reuben then had known the whole, and had been disinterestedly generous.

  • I believed him; I loved him,—loved him truly and disinterestedly.

    Pride Eugne Sue
  • One must act "disinterestedly," not want to benefit himself, but the State.

    The Ego and His Own Max Stirner
British Dictionary definitions for disinterestedly


/dɪsˈɪntrɪstɪd; -tərɪs-/
free from bias or partiality; objective
not interested
Derived Forms
disinterestedly, adverb
disinterestedness, noun
Usage note
Many people consider that the use of disinterested to mean not interested is incorrect and that uninterested should be used
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
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Word Origin and History for disinterestedly



1610s, "unconcerned," the sense we now would ascribe to uninterested, with the sense of "impartial" going to disinteressed (c.1600). See dis- + interest. Modern sense of disinterested is first attested 1650s. As things now stand, disinterested means "free from personal bias," while uninterested means "caring nothing for the matter in question." Related: Disinterestedly; disinterestedness.

Online Etymology Dictionary, © 2010 Douglas Harper
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