弱よわり切きる

godan verb (-ru), intransitive verb

be completely weakened; be utterly exhausted; be worn out

Describes physical or mental exhaustion to the point of being unable to function. Often used when someone is drained by illness, hard work, or stress.

• 長ながい病びょう気きで彼かれはすっかり弱よわり切きっていた。

  He was completely weakened by the long illness.

• 徹てつ夜や続つづきで体からだが弱よわり切きっている。

  My body is utterly exhausted from consecutive all-nighters.

godan verb (-ru), intransitive verb

be completely at a loss; be at one's wits' end; be greatly annoyed; be fed up

Expresses mental distress, helplessness, or extreme annoyance when facing a difficult situation or persistent trouble. Often used with ～に or ～で to indicate the cause.

• 問もん題だいが難むずかしすぎて、弱よわり切きってしまった。

  The problem was so difficult that I was completely at a loss.

• 彼かれのわがままには本ほん当とうに弱よわり切きる。

  I'm really fed up with his selfishness.