adjective
1.
suggestive of a cave
a cavernous fireplace that gulped in wood
Synonyms: chasmal, gaping, yawning
Related Word: commodious, vast
2.
Synonyms: hollow 1, reverberant, sepulchral
CAVERNOUS
Meaning of CAVERNOUS in English
Merriam Webster. Collegiate thesaurus English vocabulary. Английский энциклопедический словарь тезаурус. 2003