Source : Webster's Revised Unabridged Dictionary (1913)

Shamefast \Shame"fast\, a. [AS. scamf[ae]st.]
   Modest; shamefaced. -- {Shame"fast*ly}, adv. --
   {Shame"fast*ness}, n. [Archaic] See {Shamefaced}.

         Shamefast she was in maiden shamefastness. --Chaucer.

         [Conscience] is a blushing shamefast spirit. --Shak.

         Modest apparel with shamefastness.       --1 Tim. ii. 9
                                                  (Rev. Ver.).