disproportionately

from WordNet (r) 3.0 (2006)

disproportionately
    adv 1: out of proportion; "this wall is disproportionately long"
           [ant: {proportionately}]
    2: to a disproportionate degree; "his benefits were
       disproportionately generous" [ant: {proportionally},
       {proportionately}]

from The Collaborative International Dictionary of English v.0.48

Disproportionate \Dis`pro*por"tion*ate\, a.
   Not proportioned; unsymmetrical; unsuitable to something else
   in bulk, form, value, or extent; out of proportion;
   inadequate; as, in a perfect body none of the limbs are
   disproportionate; it is wisdom not to undertake a work
   disproportionate means. -- {Dis`pro*por"tion*ate*ly}, adv. --
   {Dis`pro*por"tion*ate*ness}, n.
   [1913 Webster]