Synonyms for Tentative:
conditional, provisional, limited, iffy, contingent, dependent.
•conditional, experimental (adjective)
unsettled, test, iffy, dependent, indefinite, provisional, subject to change, unconfirmed, makeshift, provisionary, contingent, undecided, provisory, probationary, not settled, not final, on trial, trial.
investigative, test, hit-or-miss, probative, empirical, trial, benchmarked, experimental, preliminary, probationary, unverified, unproven, analytical.
•indefinite, uncertain (adjective)
hesitant, irresolute, doubtful, unsure, Vacillatory, vacillating, timid, halting.
indecisive, uncertain, hesitant, irresolute, yellow, ambivalent, irresponsible, inconsistent, impulsive, unsure, vacillating, shifty, capricious, spineless, fickle, halfhearted, fly-by-night, unwilling, Shilly-shally, unresolved, dillydallying, weak, erratic, double-minded, infirm, undependable, shrinking, changeable, volatile, shy, Flitting, watery, insipid, undecided.
arguable, changeable, precarious, confused, unconvinced, controversial, insecure, ambivalent, questionable, disputable, debatable, deniable, uncertain, contestable, unsure, subject to change, vague, undecided, mysterious, moot.
n.questioning, sceptical, inclined to think/believe/agree etc., bewildered. lost, unpolished, inhibited, unfinished, start, retiring, unsure of yourself, rough, ill at ease, preliminary, sketchy, unperfected. limited, provisory. decide, Vacillatory, vacillant, timid, halting, pendulous. •provisional (noun)
makeshift, unconfirmed, open to consideration, indefinite, on trial, iffy, subject to change, not settled, not final.
conditional, unsettled, provisionary, provisional, doubtful, probationary.
Usage examples for tentative
The latter is by itself a remarkable achievement, and constitutes the one distinctly new development brought to completion in his later years; for the modifications in his theory of individuality are only tentative – Schopenhauer by Thomas Whittaker