How to say "underworld" in Japanese
Choosing the right word
- 裏社会うらしゃかいnounThe criminal sense: the hidden side of society where organized crime and illegal dealings go on. Use this when 'underworld' means the world of gangs and racketeers, not the land of the dead.
- 黄泉よみnounThe land of the dead in Japanese myth and religion — the 'Hades' sense of 'underworld'. It appears in mythology, folklore and fiction about the afterlife, not in talk about crime.
- 異界いかいnounReally means an otherworld or spirit world — a supernatural realm apart from everyday reality. It fits 'underworld' only in that supernatural sense; for death or crime it is seldom the word you want.
- 冥府めいふnounThe realm of the dead — where souls go after death in myth, religion and fiction. This is the straightforward word for 'underworld' in the Hades sense, with no criminal connotation.
- 悪の巷あくのちまたnounAn idiomatic expression for the world of vice and crime — the 'skid row' side of town. Evocative rather than neutral, it suits descriptive writing; it is seldom the plain word you want for 'underworld'.
For the criminal underworld use 裏社会 (or the idiomatic 「悪の巷」); for the land of the dead in myth and religion use 冥府 or 黄泉; 異界 fits only a supernatural otherworld, not crime or death.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only
Japanese equivalents
See also
