Doubtful [adjective]

Whether his time behind bars had a wider effect is doubtful.

McCaffrey has been limited to only three games and is doubtful to play Sunday with a thigh injury.

It’s a delicious promise, but whether American workers — battered, politically polarized and out of work in great numbers — can take on a fight of this nature at this moment is doubtful.

It, also, shows that you would not take credit for marketing activities that were already going on, and so removes another fear that could make the customer doubtful.

The place was well defended by earthworks and natural parapets, and for several hours the issue of the contest was doubtful.

Nothing doubtful or "reputed" ever arrived in the huge packing-cases consigned to Walls End Castle.

It is to be feared that like the sauce of sauces in the hands of the inexperienced cook, the result is more than doubtful.

It is doubtful whether the huge commercial premium that greets success to-day does good or harm.

For a considerable time it appeared very doubtful how the battle would end.

In the second place, some of the books in the accepted canon are regarded as of doubtful origin.