Synonyms of underworld in English:

underworld


See definition of underworld

noun

1‘vagrants were forced into the violent underworld of Southwark’

SYNONYMS
criminal world, world of crime, organized crime
criminals, gangsters
informal gangland, mob, mobsters

2‘Osiris, the god of the underworld’

SYNONYMS
the netherworld, the abode of the dead, the land of the dead, the infernal regions, the nether regions, hell, the abyss
the abode of the damned, eternal damnation, eternal punishment, perdition
Gehenna, Tophet, Abaddon
Sheol
Hades, Tartarus, Acheron
Avernus
Niflheim
British the other place
literary the pit, the shades
archaic the lower world
ANTONYMS

heaven, paradise