Definition of dungeonous in English:

dungeonous

Pronunciation /ˈdʌn(d)ʒ(ə)nəs/

adjective

  • Resembling or reminiscent of a dungeon, dungeon-like; deep, dark, gloomy, comfortless.

Origin

Early 20th century; earliest use found in The Detroit Free Press. From dungeon + -ous.