Source : Webster's Revised Unabridged Dictionary (1913)

Uneasiness \Un*eas"i*ness\, n.
   1. The quality or state of being uneasy; restlessness;
      disquietude; anxiety.

   2. The quality of making uneasy; discomfort; as, the
      uneasiness of the road. [Obs.] -- Bp. Burnet.

Source : WordNet®

uneasiness
     n 1: feelings of anxiety that make you tense and irritable [syn:
          {edginess}, {inquietude}, {disquietude}]
     2: physical discomfort (as mild sickness or depression) [syn: {malaise},
         {unease}]
     3: embarrassment deriving from the feeling that others are
        critically aware of you [syn: {self-consciousness}, {uncomfortableness}]
     4: the trait of seeming ill at ease [syn: {disquiet}, {unease}]
     5: inability to rest or relax or be still [syn: {restlessness}]