Translation guide
The English word 'nonexistent' refers to something that does not exist or is not present. In Japanese, this concept is expressed through various negative existential constructions and adjectives, depending on what is being described and the context.
To say that a thing, person, or abstract concept does not exist at all.
For living beings (people, animals). Uses the negative form of いる.
そんな人はいない。
Such a person doesn't exist.
ここには誰もいない。
There is no one here.
A more formal or written way to say 'does not exist'. Often used in academic or technical contexts.
そのような物質は存在しない。
Such a substance does not exist.
The adjective 無い can directly modify nouns to mean 'nonexistent' or 'missing'. Often used in set phrases.
無いものは無い。
What doesn't exist, doesn't exist. (You can't get blood from a stone.)
To emphasize that something is not real, but imagined or fictional.
Means 'fictional' or 'imaginary'. Used for stories, characters, or scenarios that are made up.
Literally 'does not really exist'. Contrasts with fictional or legendary existence.
ユニコーンは実在しない。
Unicorns do not exist.
To say that a quality, feature, or expected thing is absent.
Means 'is lacking' or 'is missing'. Used when something should be there but isn't.
彼には常識が欠けている。
He lacks common sense.
Means 'is insufficient' or 'is in short supply'. Often for tangible resources.
資金が不足している。
Funds are nonexistent (insufficient).
To strongly assert that something absolutely does not exist.
Using など (such things as) adds emphasis, implying 'there is no such thing as N'.
完璧な人などいない。
There is no such thing as a perfect person.
Means 'cannot possibly exist' or 'is impossible'. Stronger than simple nonexistence.
そんなことはありえない。
Such a thing is impossible (nonexistent).
English 'nonexistent' is often used hyperbolically (e.g., 'My social life is nonexistent'). In Japanese, directly translating this as 存在しない can sound overly formal or unnatural. Instead, use simpler negative forms like ない or まったくない for casual contexts.
Use ない for inanimate objects and abstract concepts. Use いない for living beings (people, animals). Mixing them up is a common learner mistake.