tentative

US /ˈten.t̬ə.t̬ɪv/

UK /ˈten.t̬ə.t̬ɪv/

1.

not certain or fixed; provisional

:

•

We have a tentative plan for the weekend, but it might change.

•

The meeting has been given a tentative date of May 10th.

:

provisional unconfirmed unsettled exploratory experimental

2.

done without confidence; hesitant

:

•

He took a few tentative steps into the dark room.

•

Her smile was tentative, as if she wasn't sure she should be happy.

:

hesitant cautious diffident timid unsure

:

tent tentatively