All dubious antonyms
du·bi·ous
D d adverb dubious
- indisputably — not disputable or deniable; uncontestable. indisputable evidence.
- without doubt — to be uncertain about; consider questionable or unlikely; hesitate to believe.
- unequivocally — in a way that is clear and unambiguous: The theme is unequivocally religious.
adj dubious
- undoubted — not called in question; accepted as beyond doubt; undisputed.
- unquestionable — not open to question; beyond doubt or dispute; indisputable; undeniable; certain: an unquestionable fact.
- determined — If you are determined to do something, you have made a firm decision to do it and will not let anything stop you.
- believable — Something that is believable makes you think that it could be true or real.
- likely — probably or apparently destined (usually followed by an infinitive): something not likely to happen.
- probable — likely to occur or prove true: He foresaw a probable business loss. He is the probable writer of the article.
- aboveboard — An arrangement or deal that is aboveboard is legal and is being carried out openly and honestly. A person who is aboveboard is open and honest about what they are doing.
- trustworthy — deserving of trust or confidence; dependable; reliable: The treasurer was not entirely trustworthy.
- honest — honorable in principles, intentions, and actions; upright and fair: an honest person.
- reliable — that may be relied on or trusted; dependable in achievement, accuracy, honesty, etc.: reliable information.
- trusty — able to be trusted or relied on; trustworthy; reliable.
- unambiguous — not ambiguous, or unclear; distinct; unequivocal: The object of the experiment was to reach an unambiguous conclusion about climate change.
- certain — If you are certain about something, you firmly believe it is true and have no doubt about it. If you are not certain about something, you do not have definite knowledge about it.
- definite — If something such as a decision or an arrangement is definite, it is firm and clear, and unlikely to be changed.
- sure — free from doubt as to the reliability, character, action, etc., of something: to be sure of one's data.
- clear — Something that is clear is easy to understand, see, or hear.
- secure — free from or not exposed to danger or harm; safe.
- doubtless — without doubt; certainly; surely; unquestionably.
- positive — admitting of no question: positive proof.
- undoubtful — of uncertain outcome or result.
- obscure — (of meaning) not clear or plain; ambiguous, vague, or uncertain: an obscure sentence in the contract.
- settled — to appoint, fix, or resolve definitely and conclusively; agree upon (as time, price, or conditions).