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1. The state of being unsure of something
   - uncertainty, incertitude, dubiety, doubtfulness, dubiousness
    
2. Uncertainty about the truth or factuality or existence of something
   - dubiousness, doubtfulness, question

1. Consider unlikely or have doubts about
   "I doubt that she will accept his proposal of marriage"
    
2. Lack confidence in or have doubts about
   "I doubt these reports"

Derived forms: doubting, doubts, doubted

See also: doubter

Type of: cognitive state, disbelieve, discredit, distrust, mistrust, precariousness, state of mind, suspect, uncertainness, uncertainty

Encyclopedia: Doubt