Of questionable character:
The definition of suspicious is someone or something questionable or likely to be suspect.
Refusing or reluctant to believe
1984, Supreme Court of Illinois, opinion in People v Terrell, 459 N.E.2d 1337, quoted in David C. Brody, James R. Acker, and Wayne A. Logan, Criminal Law, Jones & Bartlett Publishers (2001), ISBN 0-8342-1083-5, page 564,
(Obs.) Apprehension or fear
A doubtful thing
Skepticism is a general attitude of distrusting or doubting.
The definition of devoted is someone who is very loyal and steadfast in giving love or attention.
Not having come to a decision; irresolute
Precarious; unstable; unreliable.
Named but not known or previously mentioned:
The definition of leery is someone or something expressing caution and suspicion.
Not believing; doubting; skeptical; incredulous
The definition of credulous is someone who is too eager to believe things, often without thinking them through.
Find another word for skeptical. In this page you can discover 45 synonyms, antonyms, idiomatic expressions, and related words for skeptical, like: doubtful, cynical, dubious, doubting, unconvinced, dubiosity, aporetic, suspicious, belief, distrustful and incredulous.