PROVISIONAL
probationary, provisional, provisionary, tentative
(adjective) under terms not final or fully worked out or agreed upon; “probationary employees”; “a provisional government”; “just a tentative schedule”
Source: WordNet® 3.1
Etymology
Adjective
provisional (not comparable)
Temporary, but with the intention of eventually becoming permanent or being replaced by a permanent equivalent.
Synonyms
• provisionary
Noun
provisional (plural provisionals)
(philately) A postage stamp issued locally before an official issue is released.
Synonym: provisory
(dentistry) An interim denture.
Noun
Provisional (plural Provisionals) (abbreviated as Provo)
a member of the Provisional Irish Republican Army
Source: Wiktionary
Pro*vi"sion*al, a. Etym: [Cf. F. provisionnel.]
Definition: Of the nature of a provision; serving as a provision for the
time being; -- used of partial or temporary arrangements; as, a
provisional government; a provisional treaty.
Source: Webster’s Unabridged Dictionary 1913 Edition