Questionable /(?)/
Ques·tion·a·ble
Questionable
a.
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Admitting of being questioned; inviting, or seeming to invite, inquiry. [R.]
Thou com'st in such a questionable shape That I will speak to thee.
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Liable to question; subject to be doubted or called in question; problematical; doubtful; suspicious.
It is questionable whether Galen ever saw the dissection of a human body.T.