| 释义 | 
		Adjective: doubtful  dawtful- Open to doubt or suspicion
 "the candidate's doubtful past"  - dubious, dubitable, in question, doubtable  - Fraught with uncertainty or doubt
 "they were doubtful that the cord would hold"; "it was doubtful whether she would be admitted"  - dubious  - Unsettled in mind or opinion
  - tentative 
 See also: doubtfulness, incertain, questionable, uncertain, unsettled, unsure  |