The Collaborative International Dictionary of English v.0.48:

Contempt \Con*tempt"\ (k[o^]n*t[e^]mt"; 215), n. [L. contemptus,
   fr. contemnere: cf. OF. contempt. See Contemn.]
   1. The act of contemning or despising; the feeling with which
      one regards that which is esteemed mean, vile, or
      worthless; disdain; scorn.
      [1913 Webster]

            Criminal contempt of public feeling.  --Macaulay.
      [1913 Webster]

            Nothing, says Longinus, can be great, the contempt
            of which is great.                    --Addison.
      [1913 Webster]

   2. The state of being despised; disgrace; shame.
      [1913 Webster]

            Contempt and begarry hangs upon thy back. --Shak.
      [1913 Webster]

   3. An act or expression denoting contempt.
      [1913 Webster]

            Little insults and contempts.         --Spectator.
      [1913 Webster]

            The contempt and anger of his lip.    --Shak.
      [1913 Webster]

   4. (Law) Disobedience of the rules, orders, or process of a
      court of justice, or of rules or orders of a legislative
      body; disorderly, contemptuous, or insolent language or
      behavior in presence of a court, tending to disturb its
      proceedings, or impair the respect due to its authority.
      [1913 Webster]

   Note: Contempt is in some jurisdictions extended so as to
         include publications reflecting injuriously on a court
         of justice, or commenting unfairly on pending
         proceedings; in other jurisdictions the courts are
         prohibited by statute or by the constitution from thus
         exercising this process.

   Syn: Disdain; scorn; derision; mockery; contumely; neglect;
        disregard; slight.
        [1913 Webster]

The Devil's Dictionary (1881-1906):

CONTEMPT, n.  The feeling of a prudent man for an enemy who is too
formidable safely to be opposed.


Moby Thesaurus II by Grady Ward, 1.0:

126 Moby Thesaurus words for "contempt":
   abhorrence, abjuration, abjurement, affront, antipathy, arrogance,
   aspersion, atrocity, audacity, aversion, bold front, boldness,
   brash bearing, brashness, brassiness, bravado, brazenfacedness,
   brazenness, brickbat, bumptiousness, cheekiness, chucking,
   chucking out, cockiness, contemptuousness, contradiction,
   contumacy, contumely, cut, daring, daringness, declination,
   declining, defial, defiance, defying, denial, denigration,
   deprecation, depreciation, derision, despisal, despising, despite,
   disapproval, discard, disclamation, discommendation, discounting,
   discredit, disdain, disesteem, disfavor, disgust, dishonor,
   dismissal, disownment, disparagement, dispraise, disregard,
   disrepute, disrespectfulness, distaste, disvaluation, dump,
   enormity, exception, exclusion, face of brass, flippancy, flout,
   flouting, freshness, gibe, hate, hatred, humiliation, ignominy,
   ignoring, impertinence, impudence, indignity, infamy, injury,
   insolence, insult, jeer, jeering, loathing, mock, mockery,
   nonacceptance, nonapproval, nonconsideration, odium, offense,
   opprobrium, outrage, passing by, pertness, put-down, putting away,
   putting out, rebuff, recalcitrance, recantation, refusal,
   rejection, renouncement, repudiation, repugnance, repulse,
   ridicule, rudeness, sauciness, scoff, scorn, scouting, scurrility,
   shame, spurning, stubbornness, taunt, throwing out, turning out,
   uncomplimentary remark