Translation guide
The state of being awake and alert, or the quality of not being asleep. In Japanese, this concept is expressed through nouns, adjectives, and verbs that describe alertness, sleeplessness, or the act of staying awake.
Describing the condition of being awake, as opposed to sleeping.
A formal or technical term for wakefulness or arousal, often used in medical or psychological contexts.
覚醒状態を維持するのは難しい。
It's difficult to maintain a state of wakefulness.
Refers to awakening or the state of being awake, often with a nuance of clarity or enlightenment.
朝の目覚めがすっきりしている。
My morning wakefulness is refreshing.
A straightforward phrase meaning 'the state of being awake'. Common in everyday speech.
赤ちゃんが起きている状態を保つのは大変だ。
It's hard to keep the baby in a state of wakefulness.
The quality of being watchful and ready to respond, often in contexts requiring attention.
Vigilance or alertness, especially against danger. Commonly used in security or military contexts.
夜間の警戒を怠ってはいけない。
You must not neglect nighttime wakefulness (vigilance).
Level of alertness or arousal, used in scientific or medical contexts.
覚醒度が低いと事故を起こしやすい。
If your level of wakefulness is low, you're more likely to cause an accident.
Attentiveness or carefulness, implying a state of mental wakefulness.
彼の注意深さには感心する。
I admire his wakefulness (attentiveness).
The condition of being unable to sleep, often involuntary.
Insomnia or sleeplessness. A common medical term.
不眠に悩まされている。
I suffer from wakefulness (insomnia).
The state of not being able to sleep, a more colloquial expression.
眠れないことが続いている。
Wakefulness (sleeplessness) has been continuing.
The act of deliberately remaining awake, e.g., to work or study.
Staying up late, often for leisure or work. Implies intentional wakefulness at night.
試験前に夜更かしして勉強した。
I studied with wakefulness (staying up late) before the exam.
Staying awake all night, pulling an all-nighter. Stronger than 夜更かし.
To be awake (intentionally or not). The most basic verb for being awake.
彼は遅くまで起きていた。
He maintained wakefulness until late.
English 'wakefulness' is often used in abstract or medical contexts. In Japanese, it's more natural to use specific terms depending on whether you mean alertness, sleeplessness, or simply being awake. Avoid directly translating 'wakefulness' as a single word in most everyday situations.
I finished the report with all-night wakefulness.