[1] : The Collaborative International Dictionary of English v.0.48

considerably \consid"erably\, adv.
   in a manner or to a degree not trifling or unimportant;
   greatly; much.
   1913 webster

         the breeds . . . differ considerably from each other.
                                                  --darwin.
   1913 webster

[2] : WordNet (r) 2.0

considerably
     adv : to a great extent or degree; "i'm afraid the film was well
           over budget"; "painting the room white made it seem
           considerably or substantially larger"; "the house has
           fallen considerably in value"; "the price went up
           substantially" syn: well, substantially
see also:
well substantially 

[3] : Moby Thesaurus II by Grady Ward, 1.0

32 moby thesaurus words for "considerably":
   a deal, a great deal, a lot, abundantly, as all creation,
   as all get-out, beaucoup, considerable, ever so, ever so much, far,
   galore, greatly, highly, in great measure, largely, much, muchly,
   never so, no end, no end of, not a little, plenty, pretty much,
   quite, rather, significantly, so, so very much, somewhat,
   to the skies, very much

Considerably >> C Words
Considerably, definition of term: Considerably
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