cavernous
1 antonym for cavernous — opposites grouped by meaning.
Adj — Like a cave in its size, shape or feel.
Antonyms
Etymology
Cavernous comes from Late Middle English cavernous, cavernose, a borrowing from Old French caverneux or Latin cavernōsus (“full of hollows or cavities”), from caverna (“a hollow, cavity, cave”) plus -ōsus (“-ous, -ose”, an adjectival suffix); equivalent to cavern plus -ous.
Full origin of cavernous →