疲憊 is read as ひはい (hihai) and means exhaustion.
ひはい
hihai
ひろうこんぱい
total exhaustion
ねつひはい
heat exhaustion
ひろう
fatigue (of metal, etc.)
つかれ
tiredness
つかれる
to become worn out (of a well-used object)
つかれはてる
to get tired out
ひへい
exhaustion
つかれはて
being tired out
ひろうかいふく
recovery from exhaustion
おつかれさま
thank you (for your hard work)
きんぞくひろう
metal fatigue
かいごづかれ
tiredness after taking care of someone