Translation guide
The concept of 'eternity' in Japanese can be expressed through words for infinite time, permanence, or a very long time. The most common and versatile term is 永遠 (eien), but other words carry nuances of permanence, timelessness, or literary/poetic flavor.
Expressing the abstract idea of time without end, often in philosophical, romantic, or poetic contexts.
The most common and general word for 'eternity'. Used in everyday speech, literature, and formal contexts. Can also function as a na-adjective meaning 'eternal'.
永遠の愛を誓います。
I vow eternal love.
この瞬間が永遠に続けばいいのに。
I wish this moment could last forever.
Similar to 永遠, but often emphasizes permanence or unchanging state. Common in technical or formal contexts, like 'permanent' or 'perpetual'.
この建物は永久に保存されるべきだ。
This building should be preserved permanently.
A poetic or literary term for eternity, often used in songs, poems, or emotional expressions. Can be written as 永久 but read as とわ in these contexts.
とわの眠りにつく。
To sleep eternally (a euphemism for death).
Expressing that something feels like it lasts forever, often in casual or exaggerated speech.
Literally 'feels like eternity'. Used when a period of time seems endless.
待ち時間が永遠に感じた。
The waiting time felt like an eternity.
Means 'endlessly long'. More descriptive and less abstract than 永遠.
果てしなく長い会議だった。
It was an endlessly long meeting.
Referring to a state beyond time, often in spiritual or philosophical contexts.
Conveys a sense of vast, ancient eternity, often used for nature, history, or the universe. More literary than 永遠.
悠久の時を経て、山は変わらずそこにある。
Through eternal time, the mountain remains unchanged.
A compound meaning 'eternal and unchanging'. Used in formal or philosophical writing.
永遠不変の真理を求める。
Seek eternal and unchanging truth.
永遠 (eien) is the general term for eternity, used in everyday and formal contexts. 永久 (eikyuu) often implies permanence or perpetuity, common in technical or legal language. とわ (towa) is poetic and emotional, rarely used in ordinary conversation.
When saying something 'took an eternity' in English, a direct translation like 「永遠にかかった」 may sound unnatural. Instead, use phrases like 「ものすごく時間がかかった」 (it took a tremendous amount of time) or 「永遠に感じた」 (it felt like forever).
永遠にあなたを愛します。
I will love you for eternity.
宇宙は永遠に存在してきた。
The universe has existed for eternity.