Source : Webster's Revised Unabridged Dictionary (1913)

Unease \Un*ease"\, n.
   Want of ease; uneasiness. [Obs.]

Source : WordNet®

unease
     n 1: physical discomfort (as mild sickness or depression) [syn: {malaise},
           {uneasiness}]
     2: the trait of seeming ill at ease [syn: {disquiet}, {uneasiness}]