What is the meaning of exhausting?

verb

• Wear out completely.
  • usage: "This kind of work exhausts me"; "I'm beat"; "He was all washed up after the exam"
  • synonyms: exhaust, wash up, beat, tucker, tucker out
• Use up (resources or materials. )
  • usage: "this car consumes a lot of gas"; "We exhausted our savings"; "They run through 20 bottles of wine a week"
  • synonyms: consume, eat up, use up, eat, deplete, exhaust, run through, wipe out
• Deplete.
  • usage: "exhaust one's savings"; "We quickly played out our strength"
  • synonyms: run down, exhaust, play out, sap, tire
• Use up the whole supply of.
  • usage: "We have exhausted the food supplies"
  • synonyms: exhaust
• Eliminate (a substance. )
  • usage: "combustion products are exhausted in the engine"; "the plant releases a gas"
  • synonyms: exhaust, discharge, expel, eject, release

adjective

• Having a debilitating effect.
  • usage: "an exhausting job in the hot sun"
  • synonyms: draining
• Producing exhaustion.
  • usage: "an exhausting march"; "the visit was especially wearing"
  • synonyms: tiring, wearing, wearying