The adjective tentative means not definite or fully developed. It also refers to hesitance uncertainty.

Synonyms are conditional, contingent, dependent, or subject (to).

The word origins from Medieval Latin tentativus meaning “trying, testing” and from Latin tentatus, past participle of tentare which means “to feel, try”. Its first recorded use was in 1825.

We already have tentative plans for our trip.

If not for my carelessness, the tentative proposal couldn’t have been wet.

Mrs. Smith showed a tentative strategy for the marketing of the book.