(adj.) fraught with uncertainty or doubt; 'they were doubtful that the cord would hold'; 'it was doubtful whether she would be admitted'; 'dubious about agreeing to go' .
(adj.) open to doubt or suspicion; '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'- Karen Horney .
(adj.) unsettled in mind or opinion; 'drew a few tentative conclusions' .
手打:斯蒂芬
弗朗西丝编辑