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"
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
unsettled in mind or opinion; "drew a few tentative conclusions"
deviating from a straight course; "a scenic but devious route"; "a long and circuitous journey by train and boat"; "a roundabout route avoided rush-hour traffic"
indirect in departing from the accepted or proper way; misleading; "used devious means to achieve success"; "gave oblique answers to direct questions"; "oblique political maneuvers"
characterized by insincerity or deceit; evasive; "a devious character"; "shifty eyes"