Source : Webster's Revised Unabridged Dictionary (1913)

Provisory \Pro*vi"so*ry\, a. [Cf. F. provisoire.]
   1. Of the nature of a proviso; containing a proviso or
      condition; conditional; as, a provisory clause.

   2. Making temporary provision; provisional.

Source : WordNet®

provisory
     adj : subject to a proviso; "a provisory clause"