Synonyms of humongous

1 Syllable
great, big, giant
2 Syllables
bigger, huger, massiest, biggest, buller, whaling, hugest, whaler, mondo, greatest, massy, massier
3 Syllables
tremendous, sizeable, humungous, cyclopean, pythonic, gargantuan, enormous, ginormous, prodigious, walloping, immense, colossal
4 Syllables
astronomic, super-duper, bunyanesque, gigantesque, mastodonic, large-scale
5 Syllables
elephantine, super-colossal, astronomical