I. dəs, (ˈ)dis+ transitive verb
Etymology: dis- (I) + interest (v.)
: to divest of interest or interested motives
criminal case histories, which usually have a way of disinteresting theater audiences — G.J.Nathan
II. noun
Etymology: dis- (I) + interest (n.)
1. : something contrary to interest : disadvantage
to the disinterest of the public
2. : disinterestedness : lack of self-interest
the highest honor is disinterest — James Martineau
3. : lack of interest : apathy , unconcern
two soldiers with slovenly disinterest on their unlighted faces — Bruce Marshall
the monumental disinterest of the voters — Don Shoemaker