资料来源 : Webster's Revised Unabridged Dictionary (1913)

Missive \Mis"sive\, a. [See {Missive}, n.]
   1. Specially sent; intended or prepared to be sent; as, a
      letter missive. --Ayliffe.

   2. Missile. ``The missive weapons fly.'' --Dryden.

   {Letters missive}, letters conveying the permission, comand,
      or advice of a superior authority, as a sovereign. They
      are addressed and sent to some certain person or persons,
      and are distinguished from letters patent, which are
      addressed to the public.