Despite critical disapproval, disinterested has come to be widely used by many educated writers to mean "uninterested" or "having lost interest".2. Etymology: from Latin dis-, "not, without" + interested, "it matters"; frominteresse, literally, "to be in the middle", from esse, "to be".
We need a disinterested party to settle the argument.
A judge must be disinterested in the cases he or she tries if a fair outcome is to be achieved.
Emil said he likes music but that he is uninterested in doing any art work.
Vincent is afraid he is uninterested in the new novel that tells the tale of the seemingly disinterested person who served on the jury, but who was really a spy for the prosecution who was determined to get a conviction.
In traditional usage, disinterested can only mean "having no stake in an outcome": Since the judge stands to profit from the sale of the company, he can't be considered a disinterested party in this legal dispute.
Despite critical disapproval, disinterested has come to be widely used by many educated writers to mean "uninterested" or "having lost interest".