1. [ adjective ] fraught with uncertainty or doubt
Synonyms: doubtful

"they were doubtful that the cord would hold" "it was doubtful whether she would be admitted" "dubious about agreeing to go"

Related terms: uncertain
2. [ adjective ] open to doubt or suspicion
Synonyms: doubtful in_question dubitable

"the candidate's doubtful past" "he has a dubious record indeed" "what one found uncertain the other found dubious or false" "it was more than dubitable whether the friend was as influential as she thought"- Karen Horney

Related terms: questionable
3. [ adjective ] not convinced

"they admitted the force of my argument but remained dubious"

Related terms: unconvinced
Similar spelling:   du_bois