Translation guide
To be completely focused on or engrossed in an activity, often to the point of losing awareness of surroundings. Japanese uses various verbs and set phrases depending on the nuance: deep concentration, enjoyment, or losing oneself.
To describe being so involved in something that you forget everything else, often with a sense of passion or enjoyment.
The most common and versatile expression. Literally 'become in a dream', it means to be completely absorbed in something enjoyable. Can be used for hobbies, games, books, etc.
彼は新しいゲームに夢中になっている。
He is absorbed in a new game.
子供たちはアニメに夢中だ。
The kids are absorbed in anime.
A slightly more formal or literary term meaning to immerse oneself deeply in a single activity, often intellectual or creative. Implies strong concentration.
彼女は研究に没頭している。
She is absorbed in her research.
To be enthusiastically absorbed in something, often a hobby or interest. Carries a nuance of passion and excitement.
彼はサッカーに熱中している。
He is absorbed in soccer.
To be deeply absorbed, often to the point of obsession or losing balance. Can be used for hobbies, work, or even negative things like gambling.
彼はギャンブルにのめり込んでいる。
He is absorbed in gambling.
To emphasize that someone is so focused they don't notice time passing or what's happening around them.
Literally 'forget oneself', meaning to be so absorbed that you lose self-awareness. Often used for intense concentration or emotional involvement.
彼は我を忘れて仕事をした。
He worked, absorbed in his task.
A stronger version of 夢中になる, meaning 'become completely absorbed without self-awareness'. Often used for desperate or frantic absorption.
彼は無我夢中で走った。
He ran, completely absorbed in the act.
A formal, literary term for being immersed or absorbed, often used in artistic or meditative contexts.
彼は音楽に没入した。
He was absorbed in the music.
Specifically for being engrossed in a book, studying, or intellectual pursuit.
To be absorbed in reading, often for a long time. Implies being lost in a book.
彼は小説を読みふけっていた。
He was absorbed in reading a novel.
To be absorbed in studying. Combines 勉強 (study) with 没頭する (immerse oneself).
試験前で、彼は勉強に没頭している。
With exams coming up, he is absorbed in studying.
To be lost in thought, daydreaming, or deep contemplation.
To be deep in thought, often about a problem or worry. Implies being absorbed to the point of not responding to others.
彼は何かを考え込んでいる。
He is absorbed in thought about something.
To be lost in thought, often with a poetic or melancholic nuance. More literary.
彼女は物思いにふけっていた。
She was absorbed in thought.
夢中 (muchuu) is the most general and casual, suitable for any enjoyable absorption. 没頭 (bottou) is more formal and implies deep, often solitary concentration on intellectual or creative work. 熱中 (netchuu) emphasizes enthusiasm and passion, often for hobbies or sports.
ゲームに夢中になる (casual fun), 研究に没頭する (serious work), サッカーに熱中する (passionate hobby)
absorbed in a game (casual fun), absorbed in research (serious work), absorbed in soccer (passionate hobby)
Do not directly translate 'be absorbed in' as 吸収される (kyuushuu sareru), which means 'to be absorbed' in the physical sense (e.g., liquid absorbed by a sponge). Use the phrases above for mental absorption.