過労|かろうkarou[0]heiban (flat)

1. no-adjectiveoverwork; strain
   彼女かのじょは過労かろうでくたくたになっていた。↗

   She was worn out from overwork.

• Synonym働きすぎはたらきすぎNeutralColloquial word for working too much, as in 「働きすぎに注意」; it stresses the excess amount of work, while 「過労」 stresses wearing your body down as a result.
• SynonymオーバーワークNeutralLoanword for overdoing work or training; used mostly in sports contexts, as for excessive training.
• Antonym休養きゅうようNeutralTaking time off work to rest and recharge; the opposite of 「過労」.

For overwork that wears your body down, use 「過労」, as in 「過労死」 and 「過労で倒れる」. Colloquially, say 「働きすぎ」 for simply working too much. 「オーバーワーク」 fits overdoing work or training, especially in sports. The opposite is 「休養」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 働はたらき過すぎること。体調たいちょうを崩くずすほどに心身しんしんを酷使こくしすること。