Translation guide
The English word "forever" can express an endless duration, a very long time, or a persistent state. Japanese uses different expressions depending on whether you mean eternity, a long but finite time, or a continuous action. This guide helps you choose the most natural option.
Literally 'until whenever', this is a very common and natural way to say 'forever' in everyday speech. It implies an indefinite, long-lasting duration.
あなたのことをいつまでも忘れない。
I will never forget you (forever).
Similar to 永遠に, but often used in more concrete or technical contexts, like permanent preservation or eternal rest.
このデータは永久に保存されます。
This data will be stored forever.
A Buddhist term meaning 'for all eternity', used in very formal or literary contexts. Rare in daily conversation.
未来永劫語り継がれる物語。
A story that will be told forever.
Emphasizing that something takes or lasts an extremely long time, often with exaggeration.
Means 'all the time' or 'for a long time'. It's the most common way to express 'forever' in casual contexts when you mean a long duration, not literal eternity.
昨日からずっと雨が降っている。
It's been raining forever since yesterday.
Literally 'no matter how much time passes', used to complain that something is taking forever.
バスがいつまで経っても来ない。
The bus is taking forever to come.
Means 'endlessly' or 'interminably', often with a negative nuance of something dragging on.
会議が延々と続いた。
The meeting went on forever.
Describing an action or state that is constant and unchanging.
Means 'always'. It's the most natural way to say 'forever' when talking about habitual actions or permanent states.
彼はいつも遅刻する。
He is forever late.
More formal than いつも, meaning 'constantly' or 'always'. Used in written language or formal speech.
Adding extra emphasis to the idea of eternity, often in promises or poetic expressions.
An emphatic version of いつまでも, often used in songs, poems, or heartfelt promises.
いついつまでもお幸せに。
May you be happy forever and ever.
A redundant but poetic combination of 永遠に and いつまでも, used for strong emphasis.
この絆は永遠にいつまでも続く。
This bond will last forever and ever.
English uses 'forever' hyperbolically much more often than Japanese. In many cases, ずっと or いつも is more natural than 永遠に. Using 永遠に for a short wait can sound overly dramatic or unnatural.
ずっと emphasizes continuous duration ('all the time'), while いつも emphasizes habitual frequency ('always'). For example, ずっと待っている means 'I've been waiting forever (continuously)', while いつも待っている means 'I'm always waiting (on every occasion)'.
She is forever smiling.