disinterested

Etymology

Corruption of the adjective disinterest/disinteressed.

adj

1. Having no stake or interest in the outcome, and no conflicts of interest; free of bias, impartial.
   Sir, you have a right to that kind of respect, and are arguing for yourself. I am supporting the principle, and am disinterested in doing it, as I have no such right. 1791, James Boswell, Life of Samuel Johnson
   People are better off abjuring violence, if everyone else agrees to do so, and vesting authority in a disinterested third party. 2011, Steven Pinker, The Better Angels of Our Nature, Penguin, published 2012, page 220
   [P]hilosophers of the time [early 20th century] were primarily concerned with epistemology and the foundations of the sciences; they often spoke as if we were separated from the real world by a screen of "representations" or "sense-data"; they tended to regard our approach to the world as one of disinterested observation. 12 April 2014, Michael Inwood, “Martin Heidegger: the philosopher who fell for Hitler [print version: Hitler's philosopher]”, in The Daily Telegraph (Review), London, page R10
2. (proscribed) Uninterested, lacking interest.
   How dis-interested are they in all Worldly matters, since they fling their Wealth and Riches into the Sea. 1684, Contempl. State of Man I. x
   Robin took to wandering again, to intermittent travel from which she came back hours, days later, disinterested. 1936, Djuna Barnes, Nightwood, Faber & Faber, published 2007, page 43
   Those spotted are usually taught so slowly that they grow disinterested and quit. 1967, Tommy Frazer, The Sun (Baltimore), "A 'Doctor' Of Karate", March 27