anhedonia

seksuaalisen nautinnon puute puhekieltä The inability to feel pleasure from activities usually found enjoyable, such as exercise, hobbies, music, sexual activities or social interactions.
1902, William James, The Varieties of Religious Experience, Folio Society 2008, p. 123:

Sometimes it is mere passive joylessness and dreariness, discouragement, dejection, lack of taste and zest and spring. Professor Ribot has proposed the name anhedonia to designate this condition.