He mentioned to Francon, tentatively in passing, the subject of his daughter.
Months ago the commission for the giant statue of "Industry" to stand in the main lobby of the building had been awarded—tentatively—to Steven Mallory.
Scarret half smiled tentatively, puzzled, anxious to join in, but not quite certain of the cause for amusement.
His voice was low; it had a tone of warning—as of something baring its teeth, tentatively, just for future reference.
Dominique, whom he had tried to save from the Banner… When they met in the building, Scarret looked at him expectantly, with an entreating, tentative half-smile, an eager pupil waiting for the teacher’s recognition of a lesson well learned and well done.
There are no more uses of "tentative" in the book.