Giganomorous 

Something so large that words like gigantic and enormous wouldn't do the justice

Stone Mountain is a giganomorous rock

Giganomorous by EliteDriver November 28, 2022

gigantorous 

1. A combination of gigantic and enormous.

2. A word to describe something so big that words of the typical English language cannot describe it

"Did you see that snake back there? It was gigantorous!"

"How high are you right now?"

"I'm in the stars right now but seriously, that snake was fucking huge!"

gigantorous by Mega Erofan October 1, 2014