Doubtful or not settled in opinion; being in doubt; wavering or fluctuating; undetermined.

Occasioning doubt; not clear, or obvious; equivocal; questionable; doubtful; as, a dubious answer.

Of uncertain event or issue; as, in dubious battle.

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

not convinced; "they admitted the force of my argument but remained dubious"