脱だつ力りょく

noun, noun or participle which takes 'suru', intransitive verb

loss of strength; exhaustion; weakness

Describes a state of physical or mental enervation, often sudden or after effort. Can be used as a noun or with する to mean 'become limp/weak'.

• 緊きん張ちょうが解とけて、全ぜん身しんが脱だつ力りょくした。

  The tension left me and my whole body went limp.

• 暑あつさで脱だつ力りょく感かんに襲おそわれた。

  I was overcome by a feeling of weakness from the heat.