Prodigious (adjective) extraordinary in bulk, quantity, or degree: Enormous

https://www.merriam-webster.com/dictionary/prodigious

“He used to be a prodigious drinker and drug-taker…” -A Literary Visitor Strolls in From the Airport by Charles McGrath

Reading the article and coming across the word prodigious, I had idea of what the word meant. The idea I had that the man was a heavy drinker. Looking up the definition of the word, I understood that the word meant quantity or a lot of something.