Quick and Dirty Tips gave the following rules that will help us learn how to use Disinterested vs Uninterested.
“Disinterested” is an adjective which means “impartial, unbiased, or has no stake in the outcome.”
Ex. The ex-wife can hardly be considered a disinterested party.
“Uninterested” is an adjective that means “bored, unconcerned, or indifferent.”
Ex. Squiggly couldn’t help yawning; he was uninterested in fishing stories.