QUES'TIONABLE, adjective 1. That may be questioned; doubtful; uncertain; disputable. the deed is of questionable authority. It is questionable whether Galen ever saw the dissection of a human body. 2. Suspicious; liable to be doubted or disputed; liable to suspicion. His veracity is questionable Thou com'st in such a questionable shape, that I will speak to thee.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI