disinterested

/dɪsˈɪntrəstɪd/
adjective
  1. Not influenced by personal feelings or opinions; impartial and fair.
    • A good scientist must be disinterested when evaluating evidence.
    • We need a disinterested third party to settle the argument.
    • The referee remained disinterested despite the crowd's shouting.
  2. Not interested; uninterested. (Common in informal use, though some consider it incorrect.)
    • The cat gave a disinterested glance at the new toy.
    • He was completely disinterested in the movie and fell asleep.
    • She seemed disinterested in my story about the trip.