1 adj Tentative agreements, plans, or arrangements are not definite or certain, but have been made as a first step.
(=provisional) (Antonym: firm)
Political leaders have reached a tentative agreement to hold a preparatory conference next month...
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tentatively adv ADV with v
The next round of talks is tentatively scheduled to begin October 21st in Washington.
2 adj If someone is tentative, they are cautious and not very confident because they are uncertain or afraid., (Antonym: confident)
My first attempts at complaining were rather tentative...
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tentatively adv ADV with v
Perhaps, he suggested tentatively, they should send for Dr Band.