"Apathy is the acceptance of the unacceptable." John Stott "I don't know, I don't care, and it doesn't make any difference." Jack Kerouac Definition: Apathy (ap·a·thy, /ˈapəTHē/) lack of interest, enthusiasm, or concern. Occurrence of Apathy in Parkinson's: The presence of apathy in Parkinson's is between 17% to 70%, the wide range is partly due …