dubious

Adjective
  1. Fraught with uncertainty or doubt (synset 300338911)
    "they were doubtful that the cord would hold"; "it was doubtful whether she would be admitted"; "dubious about agreeing to go"
    similar to: incertain, uncertain, unsure - lacking or indicating lack of confidence or assurance
    same as: doubtful
  2. Open to doubt or suspicion (synset 301923360)
    "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"
    similar to: questionable - subject to question
    same as: doubtful, dubitable, in question
  3. Not convinced (synset 300339567)
    "they admitted the force of my argument but remained dubious"
    similar to: unconvinced - lacking conviction

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