unsad

from The Collaborative International Dictionary of English v.0.48

Unsad \Un*sad"\, a. [AS. uns[ae]d unsated, insatiable. See {Un-}
   not, and {Sad}.]
   Unsteady; fickle. [Obs.]
   [1913 Webster]

         O, stormy people, unsad and ever untrue. --Chaucer.
   [1913 Webster]