The phrase "always tentative" is correct and usable in written English.
It can be used to describe a state of uncertainty or lack of commitment in various contexts, such as decision-making or planning.
Example: "Her approach to the project was always tentative, as she wanted to ensure all options were considered before making a final decision."
Alternatives: "constantly uncertain" or "perpetually provisional".
This sort of study is almost always tentative and highly contingent.
You may know the kind of roles in which a given favorite specializes, and by now even some (always tentative) casting for early in the season.
I found her taste - in plays and in acting - to be infallible, even if she was always tentative about asserting it, and she had an unerring ear, nose and eye, for the bogus.
It pursues a relentless reductionism in order to erect a single, consistent material theory of everything from the unified cosmological force to the evolution of consciousness, a vastly more comprehensive blueprint than any City of God, yet still a theory, always tentative, and refutable at best.
Popper thus envisaged an eliminative process that begins with the rival hypotheses that a particular group of scientists happen to have thought of, and he responded to the worry that the successful survival of a series of tests might not be any indicator of truth by emphasizing that scientific acceptance is always tentative and provisional.
— you finally forgave me for being your son, and in the nasty shambles of your life, in which you had less and less occasion for pride, you were proud of me, the first Bidart who ever got a B.A.; Harvard, despite your distrust, was the crown; — but the way you eyed me: the bewilderment, unease: the somehow always tentative, suspended judgment . . .
This can be fun but it will always be tentative.
The conversation was always very tentative with him and his father was always close by.
Scientists always provide tentative answers to questions. 12.
I was always very tentative and afraid of doing something with that sort of exposure.
Rather than accept that evolution science is always a tentative work in progress, conventional evolutionists make absolutist statements like "all the facts are on my side".
