[adjective] - (of a plan or idea) not certain or agreed, or (of a suggestion or action) said or done in a careful but uncertain way because you are not sure if you are rightI have made tentative plans to take a trip to Seattle in July.I think we're moving to a bigger house in June, but it's only tentative.After looking at all the applications, we reached the tentative conclusion that three or four people might be worth interviewing.
TENTATIVE
Meaning of TENTATIVE in English
Cambridge English vocab. Кембриджский английский словарь. 2012