incurious
/(ˌ)in-ˈkyu̇r-ē-əs/
adjective
lacking a normal or usual curiosity : uninterested
a blank incurious stare
indifferent unconcerned incurious aloof detached disinterested mean not showing or feeling interest. indifferent implies neutrality of attitude from lack of inclination, preference, or prejudice. unconcerned suggests a lack of sensitivity or regard for others' needs or troubles.