questionable

Open to doubt or challenge; problematic.

Not yet determined or specified.

Of dubious morality or respectability.

Capable of being questioned or inquired of; inviting or seeming to invite inquiry or conversation.

Liable to question; suspicious; doubtful; uncertain; disputable: as, the deed is of questionable authority; his veracity is questionable.

Admitting of being questioned; inviting, or seeming to invite, inquiry.

Liable to question; subject to be doubted or called in question; problematical; doubtful; suspicious.

Problematic; open to doubt or challenge

Of dubious respectability or morality