Doubt

n.
  1. A fluctuation of mind arising from defect of knowledge or evidence; uncertainty of judgment or mind; unsettled state of opinion concerning the reality of an event, or the truth of an assertion, etc.; hesitation.
  2. Uncertainty of condition.
  3. Suspicion; fear; apprehension; dread.
  4. Difficulty expressed or urged for solution; point unsettled; objection.
    5. No doubt ,
    undoubtedly; without doubt.
    Out of doubt ,
    beyond doubt.