Translation guide
How to express the idea of thinking hard, struggling to remember or solve something, in natural Japanese.
The speaker is putting a lot of mental effort into finding a solution, idea, or answer.
The speaker is trying hard to recall a fact, name, or memory.
Literally 'become desperate to remember', a straightforward way to say you're racking your brains to recall something.
彼の名前を思い出そうと必死になっているんだけど、出てこない。
I'm racking my brains trying to remember his name, but it won't come to me.
The English idiom 'racking one's brains' does not have a direct word-for-word equivalent in Japanese. Avoid literal translations like 脳を拷問する (nō o gōmon suru), which would mean 'torture one's brain' and sound bizarre.
頭をひねる (atama o hineru) is more about creatively thinking or trying to come up with an idea, while 頭を悩ませる (atama o nayamaseru) emphasizes the distress or worry caused by a difficult problem. Both can be translated as 'racking one's brains' depending on context.
Literally 'twist one's head', this is a common idiom for racking one's brains to think of something.
いいアイデアが浮かばなくて、ずっと頭をひねっている。
I can't come up with a good idea, so I've been racking my brains.
Literally 'trouble one's head', used when a problem causes mental distress and you're struggling to find a solution.
彼は難しい問題に頭を悩ませている。
He is racking his brains over a difficult problem.
Literally 'squeeze out wisdom', meaning to rack one's brains to come up with a clever idea or solution.
みんなで知恵を絞って、問題を解決した。
We all racked our brains together and solved the problem.
To be deep in thought, often with a nuance of worrying or being stuck on a problem.
彼は何か考え込んでいるようだ。
He seems to be racking his brains about something.
Literally 'trace one's memory', used when you're searching your memory for something.
必死に記憶をたどって、やっと思い出した。
I racked my brains, tracing my memory, and finally remembered.
Onomatopoeic phrase for groaning while thinking hard, often when trying to remember or solve something. More casual and descriptive.
彼はうーんとうなりながら、答えを考えている。
He's racking his brains, groaning 'hmm' while thinking of the answer.