The Collaborative International Dictionary of English v.0.48:
exhausted \exhausted\ adj.
1. same as burned-out, 1. [WordNet sense 1+3]
Syn: burned-out(prenominal), burnt-out(prenominal), burned
out(predicate), burnt out(predicate), fagged, fatigued,
played-out(prenominal), played out(predicate), spent,
washed-out(prenominal), washed out(predicate),
worn-out(prenominal), worn out(predicate).
2. used up; completely consumed. [WordNet sense 2][Narrower
terms: gone, expended, spent] WordNet 1.5 +PJC]
3. emptied by being pumped out or having a vacuum created.
Opposite of unexhausted.
Syn: exhausted, evacuated.
[WordNet 1.5 +PJC]