Synonyms of gigantesque

1 Syllable

huge, great, vast

2 Syllables

massiest, large, monster, monstrous, whaling, jumbo, hulking, massy, mammoth, massier

3 Syllables

tremendous, massive, mountainous, humungous, cyclopean, pythonic, humongous, gargantuan, enormous, sizable, ginormous, gigantic, titanic, prodigious, stupendous, walloping, immense, herculean, colossal, behemoth

4 Syllables

monumental, super-duper, bunyanesque, mastodonic

5 Syllables

elephantine