Synonyms of prodigious

1 Syllable

vast, great, big, giant, gross

2 Syllables

bigger, huger, moby, monstrous, king-size, jumbo, hugest, mondo, greatest, massy, mammoth, whaling, vastest, massiest, biggest, piggy, vaster, spread-out, turn-on, massier, whaler, mortal, large, mighty, untold, whopping, buller

3 Syllables

voracious, enormous, gigantic, stupendous, colossal, marvelous, unusual, pythonic, dog-hungry, ginormous, sizeable, unwonted, fantastic, humongous, towering, gargantuan, stretched-out, immense, uncommon, massive, tremendous, towery, uncanny, amazing, gluttonous, singular, humungous, cyclopean, walloping, herculean, leviathan, fabulous

4 Syllables

phenomenal, astronomic, behemothic, miraculous, unlooked-for, fantastical, spectacular, unexpected, supernormal, supranormal, monumental, anomalous, super-duper, bunyanesque, gigantesque, mastodonic, razzle-dazzle, large-scale, wonderworking

5 Syllables

unappeasable, inordinate, super-colossal, unprecedented, unordinary, unnumberable, many-faceted, immeasurable, astronomical, elaborate