1) Enormously 2) Extremely 3) Hugely 4) Immeasurably 5) Immensely 6) Infinitely 7) Very 1) Immensely 2) In a huge way 3) In huge amounts 4) Much 5) To a great degree 6) To a great extent 7) To a huge degree 
• (adv.) To a vast extent or degree; very greatly; immensely.
Vast'ly adverb To a vast extent or degree; very greatly; immensely. Jer. Taylor. 
[adv] - to an exceedingly great extent or degree
vastly To an exceedingly great extent or degree: 'He had vastly overestimated his monetary resources.'
adverb to an exceedingly great extent or degree; `He had vastly overestimated his resources`; `was immensely more important to the project as a scientist than as an administrator`
to an exceedingly great extent or degree