suggestive of a cavern in vastness, darkness, etc: cavernous hungry eyes filled with small cavities; porous (of rocks) containing caverns or cavities
WordReference Random House Unabridged Dictionary of American English © 2026
cav•ern•ous
(kav′ər nəs),USA pronunciation adj.
cav′ern•ous•ly, adv.
- being, resembling, or suggestive of a cavern:a vast, cavernous room.
- deep-set:cavernous eyes.
- hollow and deep-sounding:a cavernous voice.
- containing caverns.
- full of small cavities;
porous.
- Latin cavernōsus. See cavern, -ous
- Middle English 1350–1400
Collins Concise English Dictionary © HarperCollins Publishers::
'cavernous' also found in these entries (note: many are not synonyms or translations):