In doubt or dispute
Not affording certainty
Of dubious character
Having a poor appearance or reputation
Other insects visit the flower with more questionable result.
One morning, while Carmen was cleaning the house, he caught her standing in the living room, confronting the recliner with a questionable amount of courage.
in the time of Artaxerxes, and it is questionable whether the earliest of the surviving detailed traditions in Ezra-Nehemiah went back before this reign.
That was a classic indicator in a questionable suicide.
The correctness of this association is questionable, and the Polyzoa are here treated as a primary division or phylum of the animal kingdom.