Doubt is distrust or suspicion. When your kid sister explains that a robber broke in and ate your entire chocolate stash, most likely you feel doubt.

When you're in doubt, you really can't tell what's true and what's false, whether that's a news story or whether you want to marry someone or whether you'll survive Med school. The Latin root of doubt is dubitāre, "to hesitate, waver," and when you doubt something you're wavering: I think I believe you, but maybe I don't. But maybe I do. But maybe not? One thing not to doubt is the silent b. Pronounce: DOWT.

Definitions of doubt

n the state of being unsure of something

doubtfulness, dubiety, dubiousness, incertitude, uncertainty
the state of being certain
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arriere pensee, mental reservation, reservation
an unstated doubt that prevents you from accepting something wholeheartedly
distrust, misgiving, mistrust, suspicion
doubt about someone's honesty
disbelief, incredulity, mental rejection, skepticism
doubt about the truth of something
indecision, indecisiveness, irresolution
doubt concerning two or more possible alternatives or courses of action
doubt or uncertainty as to whether something is the case
an uncertain cognitive state
hesitation, vacillation, wavering
indecision in speech or action
Type of:
cognitive state, state of mind
the state of a person's cognitive processes

n uncertainty about the truth or factuality or existence of something

doubtfulness, dubiousness, question
Type of:
precariousness, uncertainness, uncertainty
being unsettled or in doubt or dependent on chance

v consider unlikely or have doubts about

“I doubt that she will accept his proposal of marriage”
Type of:
disbelieve, discredit
reject as false; refuse to accept

v lack confidence in or have doubts about

“I doubt these reports”
Type of:
distrust, mistrust, suspect
regard as untrustworthy; regard with suspicion; have no faith or confidence in