Synonyms of vastly
- 1 Syllable
- much
- 2 Syllables
- highly, greatly
- 3 Syllables
- largely, hugely, mightily
- 4 Syllables
- enormously, extremely, tremendously, exceedingly
- 5 Syllables
- incalculably, indispensably, astonishingly, immeasurably
- 6 Syllables
- exaggeratedly