prəˈviZHənl
adjective

1. Arranged or existing for the present, possibly to be changed later.
"a provisional government"
synonyms: interim, temporary, pro tem; More
antonyms: permanent, definite
(of a postage stamp) put into circulation temporarily, usually owing to the unavailability of the definitive issue.

2. Of or relating to the unofficial wings of the Irish Republican Army and Sinn Fein established in 1969 and advocating terrorism.
noun
noun: provisional; plural noun: provisionals; noun: Provisional; plural noun: Provisionals

1. A provisional postage stamp.

2. A member of the Provisional wings of the Irish Republican Army or Sinn Fein.