Synonyms of ballbuster

1 Syllable
hard, tough, great, rough
2 Syllables
dismaying, mighty, puissant, strenuous, arduous, murder, uphill, mammoth
3 Syllables
laborious, tremendous, challenging, effortful, toilsome, onerous, powerful, colossal, staggering, labored
4 Syllables
awesome, all-powerful, impressive
5 Syllables
indomitable, intimidating, overpowering