English adjective: doubtful | |||
1. | doubtful open to doubt or suspicion | ||
Samples | The candidate's doubtful past. He has a dubious record indeed. What one found uncertain the other found dubious or downright false. It was more than dubitable whether the friend was as influential as she thought. | ||
Synonyms | dubious, dubitable, in question | ||
Similar | questionable | ||
Antonyms | unquestionable | ||
2. | doubtful fraught with uncertainty or doubt | ||
Samples | They were doubtful that the cord would hold. It was doubtful whether she would be admitted. Dubious about agreeing to go. | ||
Synonyms | dubious | ||
Similar | incertain, uncertain, unsure | ||
Antonyms | sure, certain | ||
3. | doubtful unsettled in mind or opinion | ||
Samples | Drew a few tentative conclusions. | ||
Synonyms | tentative | ||
Similar | unsettled | ||
Antonyms | settled | ||