Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun doubt

2 senses of doubt

Sense 1
doubt, uncertainty, incertitude, dubiety, doubtfulness, dubiousness -- (the state of being unsure of something)
       => cognitive state, state of mind -- (the state of a person's cognitive processes)

Sense 2
doubt, dubiousness, doubtfulness, question -- (uncertainty about the truth or factuality or existence of something; "the dubiousness of his claim"; "there is no question about the validity of the enterprise")
       => uncertainty, uncertainness, precariousness -- (being unsettled or in doubt or dependent on chance; "the uncertainty of the outcome"; "the precariousness of his income")

Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb doubt

2 senses of doubt

Sense 1
doubt -- (consider unlikely or have doubts about; "I doubt that she will accept his proposal of marriage")
       => disbelieve, discredit -- (reject as false; refuse to accept)

Sense 2
doubt -- (lack confidence in or have doubts about; "I doubt these reports"; "I suspect her true motives"; "she distrusts her stepmother")
       => distrust, mistrust, suspect -- (regard as untrustworthy; regard with suspicion; have no faith or confidence in)