The definition of doubtful is suspicious, unclear or unsure. · Subject to or causing doubt. · Of ...

doubtful in American English · 1. of uncertain outcome or result · 2. admitting of or causing dou...

doubtful meaning, definition, what is doubtful: probably not true or not likely to happe...: Lear...

1Feeling uncertain about something. 'he looked doubtful, but gave a nod'. More example sentences....

doubtful · of uncertain outcome or result. · admitting of or causing doubt; uncertain; ambiguous....

doubtful的例句. doubtful. In case b, a person is doubtful about a law. 來自Cambridge English Corpus. ...