Source : Webster's Revised Unabridged Dictionary (1913)

Unsoft \Un*soft"\ (?; 115), a.
   Not soft; hard; coarse; rough. [Obs.] ``Bristles of his beard
   unsoft.'' --Chaucer.

Unsoft \Un*soft"\, adv. [AS. uns?fte. See {Un-} not, and
   {Soft}.]
   Not softly. [Obs.]

         Great climbers fall unsoft.              --Spenser.