The Collaborative International Dictionary of English v.0.48:

Discontent \Dis`con*tent"\, v. t. [imp. & p. p. Discontented;
   p. pr. & vb. n. Discontenting.]
   To deprive of content; to make uneasy; to dissatisfy.
   --Suckling.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Discontent \Dis`con*tent"\, n.
   1. Want of content; uneasiness and inquietude of mind;
      dissatisfaction; disquiet.
      [1913 Webster]

            Now is the winter of our discontent
            Made glorious summer by this sun of York. --Shak.
      [1913 Webster]

            The rapacity of his father's administration had
            excited such universal discontent.    --Hallam
      [1913 Webster]

   2. A discontented person; a malcontent. [R.]
      [1913 Webster]

            Thus was the Scotch nation full of discontents.
                                                  --Fuller.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Discontent \Dis`con*tent"\ (d[i^]s`k[o^]n*t[e^]nt"), a.
   Not content; discontented; dissatisfied. --Jer. Taylor.
   [1913 Webster]

         Passion seemed to be much discontent, but Patience was
         very quiet.                              --Bunyan.
   [1913 Webster]

WordNet (r) 3.0 (2006):

discontent
    adj 1: showing or experiencing dissatisfaction or restless
           longing; "saw many discontent faces in the room"; "was
           discontented with his position" [syn: discontented,
           discontent] [ant: content, contented]
    n 1: a longing for something better than the present situation
         [syn: discontentment, discontent, discontentedness]
         [ant: contentment]
    v 1: make dissatisfied [ant: content]