The definition of dubious is something that is unlikely to be true.
An example of dubious is a claim that the world is flat.
- causing doubt; ambiguous; vague: a dubious remark
- feeling doubt; hesitating; skeptical
- with the outcome undecided or hanging in the balance: dubious battle
- rousing suspicion; questionable; shady: a dubious character
Origin of dubiousClassical Latin dubiosus, doubtful from dubius, doubting, uncertain from du- from or akin to duo, two + Indo-European base an unverified form bhu-, an unverified form bheu-, to be
- Fraught with uncertainty or doubt; undecided.
- Arousing doubt; doubtful: a dubious distinction.
- Of questionable character: dubious profits.
Origin of dubiousFrom Latin dubius ; see dwo- in Indo-European roots.
(comparative more dubious, superlative most dubious)
- Arousing doubt; questionable; open to suspicion.
- After he made some dubious claims about the company, fewer people trusted him.
- In disbelief; wavering, uncertain, or hesitating in opinion; inclined to doubt; undecided.
- She was dubious about my plan at first, but later I managed to persuade her to cooperate.
From Latin dubius.