voluminous in WordNet English dictionary

1. large in number or quantity (especially of discourse)
   "she took copious notes"; "a subject of voluminous legislation"
   copious  voluminous 
   
2. marked by repeated turns and bends
   "a tortuous road up the mountain"; "winding roads are full of surprises"; "had to steer the car down a twisty track"
   tortuous  twisting  twisty  winding  voluminous 
   
3. large in volume or bulk
   "a voluminous skirt"
   voluminous