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doubtful
01
疑わしい, 不確かな
(of a person) uncertain or hesitant about something
02
疑わしい, あり得ない
improbable or unlikely to happen or be the case
03
疑わしい, 不確かな
unsettled in mind or opinion
doubtful
adj
doubt
n
doubtfully
adv
doubtfully
adv
doubtfulness
n
doubtfulness
n
例
The student looked doubtful when asked if he understood the complex math problem.
He was doubtful about the success of the project, considering the tight deadline.
She felt doubtful about the sincerity of his apology, wondering if it was genuine.
He appeared doubtful about the reliability of the information he received.
She seemed doubtful about the decision, unsure if it was the right choice.
