QUESTIONABLY
questionably, dubiously
(adverb) in a questionable and dubious manner; “these were estates his father questionably acquired”
Source: WordNet® 3.1
Etymology
Adverb
questionably (comparative more questionably, superlative most questionably)
in a questionable manner
Source: Wiktionary
Ques"tion*a*bly, adv.
Definition: In a questionable manner.
QUESTIONABLE
Ques"tion*a*ble, a.
1. 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.
Shak.
2. 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. Baker.
Syn.
– Disputable; debatable; uncertain; doubtful; problematical;
suspicious.
Source: Webster’s Unabridged Dictionary 1913 Edition