The Collaborative International Dictionary of English v.0.48:

Misrepresent \Mis*rep`re*sent"\, v. t.
   To represent incorrectly (almost always, unfavorably); to
   give a false or erroneous representation of, either
   maliciously, ignorantly, or carelessly. --Swift.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Misrepresent \Mis*rep`re*sent"\, v. i.
   To make an incorrect or untrue representation. --Milton.
   [1913 Webster]

WordNet (r) 3.0 (2006):

misrepresent
    v 1: represent falsely; "This statement misrepresents my
         intentions" [syn: misrepresent, belie]
    2: tamper, with the purpose of deception; "Fudge the figures";
       "cook the books"; "falsify the data" [syn: fudge,
       manipulate, fake, falsify, cook, wangle,
       misrepresent]

Moby Thesaurus II by Grady Ward, 1.0:

60 Moby Thesaurus words for "misrepresent":
   belie, bias, burlesque, camouflage, caricature, cloak, color,
   confuse, counterfeit, disguise, dissemble, distort, dress,
   dress up, embellish, embroider, equivocate, exaggerate, falsify,
   feign, fudge, garble, gild, gloss, gloss over, lie, mangle, mask,
   miscite, miscolor, misconstrue, misdirect, misinterpret, misquote,
   misrender, misreport, misstate, misteach, misuse, overdraw,
   overstate, palter, parody, pervert, prevaricate, simulate, slant,
   strain, titivate, torture, travesty, trick out, twist, understate,
   varnish, warp, weasel, whitewash, wrench, wrest