doubt

nouns

the state of being unsure of something
doubt, doubtfulness, dubiety, dubiousness, incertitude, uncertainty
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"
doubt, doubtfulness, dubiousness, question

verbs

consider unlikely or have doubts about
"I doubt that she will accept his proposal of marriage"
doubt
is derived from
doubter
is derived from
doubter
is a type of (narrower)
reject as false; refuse to accept
disbelieve, discredit
lack confidence in or have doubts about
"I doubt these reports"; "I suspect her true motives"; "she distrusts her stepmother"
doubt
is a type of (narrower)
regard as untrustworthy; regard with suspicion; have no faith or confidence in
distrust, mistrust, suspect