All 6 Uses

tentative
in
The Memory Keeper’s Daughter
(Edited)

Caroline walked tentatively, floorboards creaking with every step, but no one appeared.
p. 24.6

tentatively = in a cautious unsure manner
It was not until they left the office, stepping tentatively into the chill, damp air of the next afternoon, that the loss had finally penetrated.
p. 37.9

tentatively = in an unsure or hesitant manner
A silence followed, and then Bree broke it awkwardly, tentatively, by offering Norah the last piece of buttered bread.
p. 44.2
Tentatively, now, she pushed the silver lever.
p. 83.3
This, finally, was what had pained his mother most, the lost years standing between them, their words so tentative and formal where ease and love should have been.
p. 392.7 *

tentative = cautious
Paul watched his mother embrace his sister and give Phoebe her bouquet; he watched Phoebe's tentative hug in return.
p. 398.1

Definitions:

(1) (tentative as in: said it tentatively)
done in a careful or unsure way (indicating a lack of confidence in exactly what will happen)
(2) (tentative as in: a tentative plan)
subject to change (likely or possibly going to change)
(3) (meaning too rare to warrant focus)