Translation guide
The hidden, negative, or evil aspect of something, often contrasted with a positive or public side.
Referring to the morally bad, sinister, or harmful part of a person, group, or thing.
Referring to the concealed, private, or less known part of something, not necessarily evil.
Means 'unknown side' or 'hidden aspect'. Neutral, used when revealing a surprising or little-known fact about someone or something.
彼の知られざる一面を知った。
I learned about his dark side (hidden side).
Referring to the side of the moon that is not visible from Earth.
The standard term for the far side of the moon. Not metaphorical; purely astronomical.
月の裏側は地球から見えない。
The dark side of the moon is not visible from Earth.
Directly translating 'dark side' as 暗い側 (くらいがわ) is unnatural in Japanese. Use the appropriate metaphorical or literal term based on context.
He has a dark side to his personality.
政治の闇を暴く。
Expose the dark side of politics.
Literally 'dark/black side', often used in contexts like 'the dark side of the Force' (Star Wars) or to describe a hidden evil aspect. More dramatic than 闇.
フォースの暗黒面に落ちる。
Fall to the dark side of the Force.
彼の暗黒面がついに出た。
His dark side finally came out.
Means 'negative side/aspect'. More neutral and analytical, used when discussing drawbacks or negative consequences, not necessarily evil.
テクノロジーの負の側面も考えるべきだ。
We should also consider the dark side of technology.
Literally 'shadow', can metaphorically refer to a hidden, darker aspect of something, often in literary or poetic contexts.
成功の影には多くの犠牲がある。
Behind the success lies a dark side of many sacrifices.
Let's explore the dark side (hidden side) of this city.
Literally 'back face', meaning a hidden personality or secret life, often with a negative connotation but can be neutral.
彼には裏の顔があるらしい。
Apparently he has a dark side (a hidden side).