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熟睡 (じゅくすい) Japanese meaning | Kotomora
Common word Freq. Frequency Top 20,000 Conjugation Meanings 1
noun, noun or participle which takes 'suru', intransitive verb
deep sleep ; sound sleep
Refers to sleeping deeply and soundly, often used in contexts of restful, uninterrupted sleep. Can be used as a noun or with する to mean 'to sleep deeply'.
赤あか
ちゃん
の
顔かお
は
とても
安やす
らか
だ
。
The face of a baby in deep sleep is very peaceful.
Similar words 安あん 眠みん 安眠 also means 'sound sleep' but emphasizes peaceful, untroubled sleep, while 熟睡 focuses on the depth of sleep.
爆ばく 睡すい 爆睡 is a slangy, emphatic term for 'sleeping like a log', more casual than 熟睡.
Etymology Compound of 熟 (じゅく, 'mature, ripen, deep') and 睡 (すい, 'sleep'). The kanji 熟 suggests a fully developed or profound state, hence 'deep sleep'.