1) Amply 2) Appreciably 3) Drastically 4) Extensively 5) Largely 6) Much 7) Notably 8) Noticeably 9) Palpably 10) Radically 11) Significantly 12) Substantially 13) To a great extent or degree 14) To a large degree 15) To a large extent 16) Well 1) Byfar 2) Far 3) Generously 4) Infinitely 5) Much 6) Pretty 7) Quite 8) Quite a bit 9) Radically 10) Significantly 11) Some 12) Substantially 
• (adv.) In a manner or to a degree not trifling or unimportant; greatly; much.
Con·sid'er·a·bly adverb In a manner or to a degree not trifling or unimportant; greatly; much. « The breeds . . . differ considerably from each other. Darwin. » 
to a noteworthy or marked extent; much; noticeably; substantially; amply.