drained

Adjective

• drained of electric charge; discharged
  • a dead battery
    
  • left the lights on and came back to find the battery drained
    

• very tired

• emptied or exhausted of (as by drawing off e.g. water or other liquid)
  • a drained marsh
    
  • a drained tank
    
  • a drained and apathetic old man...not caring any longer about anything
    

Related words

• Synonyms: 
  dead , knackered