What is the meaning of drained?

verb

• Flow off gradually.
  • usage: "The rain water drains into this big vat"
  • synonyms: drain, run out
• Deplete of resources.
  • usage: "The exercise class drains me of energy"
  • synonyms: drain
• Empty of liquid; drain the liquid from.
  • usage: "We drained the oil tank"
  • synonyms: drain
• Make weak.
  • usage: "Life in the camp drained him"
  • synonyms: enfeeble, debilitate, drain

adjective

• Emptied or exhausted of (as by drawing off e. G. Water or other liquid. )
  • usage: "a drained marsh"; "a drained tank"; "a drained and apathetic old man... Not caring any longer about anything"
• Very tired.
  • synonyms: knackered
• Drained of electric charge; discharged.
  • usage: "a dead battery"; "left the lights on and came back to find the battery drained"
  • synonyms: dead