HinKhoj Dictionary

Languor: tiredness, feeling of fatigue or lack of interest.
Slacking: The evasion of work or duty.
Torpor: A state of mental/physical inactivity.
Lassitude: Inactivity resulting from lethargy and lack of vigor or energy.
Faineance: The trait of being idle out of a reluctance to work.
Ennui: Feeling of dissatisfaction due to lack of occupation