Dubious vs. Doubtful

Dubiousadjective

(of a statement) Arousing doubt; questionable; open to suspicion.

‘After he made some dubious claims about the company, fewer people trusted him.’;

Doubtfuladjective

Subject to, or causing doubt.

Dubiousadjective

(of a person) 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.’;

Doubtfuladjective

Experiencing or showing doubt, sceptical.

Dubiousadjective

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

‘A dubious, agitated state of mind.’;

Doubtfuladjective

Undecided or of uncertain outcome.

Dubiousadjective

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

‘Wiping the dingy shirt with a still more dubious pocket handkerchief.’;

Doubtfuladjective

(obsolete) Fearsome, dreadful.

Dubiousadjective

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

Doubtfuladjective

Improbable or unlikely.

Dubiousadjective

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’;

Doubtfuladjective

Suspicious, or of dubious character.

Dubiousadjective

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’;

Doubtfuladjective

Unclear or unreliable.

Dubiousadjective

not convinced;

‘they admitted the force of my argument but remained dubious’;

Doubtfulnoun

A doubtful person or thing.

Doubtfuladjective

Not settled in opinion; undetermined; wavering; hesitating in belief; also used, metaphorically, of the body when its action is affected by such a state of mind; as, we are doubtful of a fact, or of the propriety of a measure.

‘Methinks I should know you, and know this man;Yet I am doubtful.’; ‘With doubtful feet and wavering resolution.’;

Doubtfuladjective

Admitting of doubt; not obvious, clear, or certain; questionable; not decided; not easy to be defined, classed, or named; as, a doubtful case, hue, claim, title, species, and the like.

‘Beauty is but a vain and doubtful good.’; ‘Is it a great cruelty to expel from our abode the enemy of our peace, or even the doubtful friend [i. e., one as to whose sincerity there may be doubts]?’;

Doubtfuladjective

Characterized by ambiguity; dubious; as, a doubtful expression; a doubtful phrase.

Doubtfuladjective

Of uncertain issue or event.

‘We . . . have sustained one day in doubtful fight.’; ‘The strife between the two principles had been long, fierce, and doubtful.’;

Doubtfuladjective

Fearful; apprehensive; suspicious.

‘I am doubtful that you have been conjunctAnd bosomed with her.’;

Doubtfuladjective

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’;

Doubtfuladjective

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’;

Doubtfuladjective

unsettled in mind or opinion;

‘drew a few tentative conclusions’;