Synonym word of most tentative:

acting, ad interim, conjectural, contingent, dependent, iffy, indefinite, makeshift, not final, not settled, on trial, open for consideration, probationary, provisional, provisionary, provisory, speculative, subject to change, temporary, test, trial, unconfirmed, undecided, unsettled


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Synonyms:  A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Popular