意識(いしき)喪失(そうしつ)

いしきそうしつ
noun
loss of consciousness; fainting; blackout
health
1. loss of consciousness; fainting; blackout
The state of losing awareness and responsiveness. Used in medical, emergency, and news contexts to describe someone who has fainted or become unconscious.
患者(かんじゃ)は意識(いしき)喪失(そうしつ)を起(お)こした。
The patient lost consciousness.
一時的(いちじてき)な意識(いしき)喪失(そうしつ)の後(あと)、すぐに回復(かいふく)した。
After a momentary loss of consciousness, he recovered quickly.
運転中(うんてんちゅう)に意識(いしき)喪失(そうしつ)が起(お)きた場合(ばあい)、重大(じゅうだい)な事故(じこ)につながるおそれがある。
If a loss of consciousness occurs while driving, it could lead to a serious accident.

A medical and formal term for losing consciousness. Composed of 意識(いしき) (consciousness) and 喪失(そうしつ) (loss). Frequently encountered in news reports about accidents, medical emergencies, and health conditions. The abbreviated form 意識(いしき)を失(うしな)う (to lose consciousness) is also very common.

Common collocations

Similar words

  • 失神(しっしん): fainting; syncope — a more specific medical term for brief fainting episodes
  • 気絶(きぜつ): fainting; passing out — slightly more colloquial and dramatic
  • 昏睡(こんすい): coma — a prolonged state of deep unconsciousness, more severe than 意識(いしき)喪失(そうしつ)

Related Words

Compare: 失神(しっしん) (fainting)
Compare: 気絶(きぜつ) (fainting)
Compare: 昏睡(こんすい) (coma)
general
Added 2026.4.27 22:09 · Revised 2026.9.2 13:02
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