プログレッシブ和英中辞典(第4版)の解説
うたがわしい【疑わしい】
〔不確かな〕doubtful ((if, whether))；〔疑問のある〕questionable；〔怪しい〕suspicious ((of, about))
その信憑(しんぴょう)性は疑わしい
Its reliability is doubtful [open to question].
彼が間に合うかどうか疑わしい
I doubt whether he will 「make it [arrive in time].
その情報は疑わしいと思う
I am doubtful [suspicious] of that information.
彼の動機は疑わしい
His motives are questionable.
疑わしげに首を振った
He shook his head doubtfully.
疑わしきは罰せず
give a person the benefit of the doubt