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1. A state of comatose torpor (as found in sleeping sickness)
   - lethargy, sluggishness
    
2. A feeling of lack of interest or energy
   - languor, listlessness
    
3. Weakness characterized by a lack of vitality or energy
   - inanition, lethargy, slackness

Derived forms: lassitudes

Type of: apathy, torpidity, torpor, weakness

Encyclopedia: Lassitude