6
almighty(adjective, severe, awful, terrible, horrible)
6
dire(adjective, awful, terrible, horrible, afraid)
6
dreadful(adjective, awful, terrible, horrible, afraid)
6
grievous(adjective, awful, terrible, horrible, afraid)
6
unreasonable(adjective, extreme, extra, ridiculous, excessive)
6
wretched(adjective, awful, terrible, horrible, afraid)
5
sad(adjective, awful, terrible, horrible, afraid)
5
abominable(adjective, awful, terrible, horrible, afraid)
5
abysmal(adjective, awful, terrible, horrible, afraid)
5
bad(adjective, awful, terrible, horrible, afraid)
5
beastly(adjective, awful, terrible, horrible, afraid)
5
considerable(adjective, strong, great, big, powerful)
5
copious(adjective, great, big, large, huge)
5
cosmic
5
endless(adjective, open, large, comfortable, huge)
5
ginormous
5
heroic(adjective, big)
5
hideous(adjective, awful, terrible, horrible, afraid)
5
king-size(adjective, large, huge, vast, copious)
5
leviathan
10 years ago|25k views|share |citing 
APASmart Define. (2016). enormous thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/enormous/thesaurus/synonyms
ChicagoSmart Define. 2016. "enormous thesaurus" https://smartdefine.org/enormous/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, enormous thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/enormous/thesaurus/synonyms>.
MLASmart Define. "enormous thesaurus" 26 February 2016. Web. 26 September 2026. <https://smartdefine.org/enormous/thesaurus/synonyms>