Synonyms for voluminous

Adjective

1. voluminous, large (vs. small), big (vs. little)

usage: large in volume or bulk; "a voluminous skirt"

2. copious, extensive, voluminous, abundant (vs. scarce)

usage: large in number or quantity (especially of discourse); "she took copious notes"; "extensive press coverage"; "a subject of voluminous legislation"