Disinterested vs Uninterested
Uninterestedadjective
not having or showing interest
The difference
Disinterested means impartial — having no stake in the outcome. Uninterested means bored. A good judge is disinterested; a bad one is uninterested.
How to keep them apart
Disinterested is a compliment, uninterested is not. Losing this distinction loses a word English has no other way of saying.