Source : Webster's Revised Unabridged Dictionary (1913)

Discomfort \Dis*com"fort\, n. [OF. desconfort, F. d['e]confort.
   See {Discomfort}, v. t.]
   1. Discouragement. [Obs.] --Shak.

   2. Want of comfort; uneasiness, mental or physical;
      disturbance of peace; inquietude; pain; distress; sorrow.
      ``An age of spiritual discomfort.'' --M. Arnold.

            Strive against all the discomforts of thy
            sufferings.                           --Bp. Hall.

Discomfort \Dis*com"fort\, v. t. [imp. & p. p. {Discomforted};
   p. pr. & vb. n. {Discomforting}.] [OF. desconforter, F.
   d['e]conforter, to discourage; pref. des- (L dis-) +
   conforter. See {Comfort}.]
   1. To discourage; to deject.

            His funeral shall not be in our camp, Lest it
            discomfort us.                        --Shak.

   2. To destroy or disturb the comfort of; to deprive o? quiet
      enjoyment; to make uneasy; to pain; as, a smoky chimney
      discomforts a family.

Source : WordNet®

discomfort
     n 1: the state of being tense and feeling pain [syn: {uncomfortableness}]
          [ant: {comfort}]
     2: an uncomfortable feeling in some part of the body [syn: {soreness},
         {irritation}]