voluminous
Voluminous (adjective) means Very large in quantity or extent, especially of writing, records or evidence. Example: “The inquiry produced voluminous documentation.”
How to use voluminous
Learner’s notesIn plain EnglishVery big and full, with lots of it.
Neutral to literary; frequent in fashion writing and legal reporting.
Fill the gap
Can you complete this real example?
The inquiry produced _____ documentation.
Etymology
From late Latin voluminosus, from volumen 'a roll or scroll'.