Synonyms of cavernous

1 Syllable
broad, huge, wide, vast, deep
2 Syllables
deep-set, chasmal, sunken, spacious, echoing, yawning, roomy, gaping, hollow
3 Syllables
cup-shaped, troughlike, chambered, uncrowded, socketed, resonant, concave, hollowest, commodious, hollower, hollowing, abyssal, sepulchral
4 Syllables
alveolate, voluminous, reverberant
5 Syllables
infundibular