from The Century Dictionary.

  • noun A redoubt.
  • noun Uncertainty with regard to the truth of a given proposition or assertion; suspense of judgment arising from defect of evidence or of inclination; an unsettled state of opinion; indecision of belief.
  • noun A matter of uncertainty; an undecided case or proposition; a ground of hesitation.
  • noun A difficulty suggested or proposed for solution; an objection.
  • noun Difficulty; danger.
  • noun Hesitating apprehension; fear; dread.
  • noun Synonyms Indecision, irresolution, suspense, hesitation, hesitancy, misgiving, distrust, mistrust.
  • To be uncertain as to a truth or fact; be undetermined or undecided; waver or fluctuate in opinion; hesitate.
  • To be in fear; be afraid.
  • To be uncertain as to the truth or fact of; hold in question; question; hesitate to believe: as, to doubt the truth of a story.
  • To be expectant or apprehensive of; believe hesitatingly or indefinitely.
  • To distrust; be uncertain with regard to; be distrustful of: as, to doubt one's ability to execute a task.
  • To fear; be afraid of.
  • To cause to fear; put in fear; appal; daunt.

from the GNU version of the Collaborative International Dictionary of English.

  • intransitive verb To waver in opinion or judgment; to be in uncertainty as to belief respecting anything; to hesitate in belief; to be undecided as to the truth of the negative or the affirmative proposition; to b e undetermined.
  • intransitive verb obsolete To suspect; to fear; to be apprehensive.
  • transitive verb To question or hold questionable; to withhold assent to; to hesitate to believe, or to be inclined not to believe; to withhold confidence from; to distrust.
  • transitive verb obsolete To suspect; to fear; to be apprehensive of.
  • transitive verb obsolete To fill with fear; to affright.
  • noun 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.
  • noun Uncertainty of condition.
  • noun obsolete Suspicion; fear; apprehension; dread.
  • noun Difficulty expressed or urged for solution; point unsettled; objection.
  • noun undoubtedly; without doubt.
  • noun [Obs.] beyond doubt.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • verb To lack confidence in; to disbelieve, question, or suspect.
  • verb archaic To fear; to suspect.
  • noun Uncertainty, disbelief.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • verb lack confidence in or have doubts about
  • verb consider unlikely or have doubts about
  • noun the state of being unsure of something
  • noun uncertainty about the truth or factuality or existence of something


from Wiktionary, Creative Commons Attribution/Share-Alike License

From Middle English douten, from Anglo-Norman douter, from Old French douter, from Latin dubitare. Replaced Middle English tweonien ("to doubt") (from Old English twēonian, compare Old English twēo ("doubt, duplicity")). The modern spelling is probably under the influence of Middle French doubter.

from Wiktionary, Creative Commons Attribution/Share-Alike License

Middle English doute, from Anglo-Norman and Old French doute, from Latin dubita. The modern spelling is probably under the influence of Middle French doubte.


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  • '"You should never, ever doubt what nobody is sure of."' -Willy Wonka in the movie Willy Wonka and the Chocolate Factory

    February 18, 2008

  • I think there are very few words that I like the SOUND of as much as this one.

    August 28, 2009

  • Are you sure, 'vi?

    August 28, 2009

  • No doubt about it!

    August 28, 2009

  • Kudos and a laurel wreath to the Wordie who can tell us just how Irish Gaelic dubh might relate to this word. Care to chime in qroqqa or sionnach?

    August 28, 2009

  • I don't think I'd believe it.

    August 28, 2009

  • Dubh means black, right? So... Our doubts are traitors, and make us lose the good we oft might win by fearing to attempt.

    That's my story, anyhow. :)

    August 28, 2009

  • I've heard of some cargo cult etymology that connects them. The Latin dubit- is actually a frequentative of a contracted form of du-hib-, i.e. (allowing for Old Latin weak vowel changes) du- "two" + hab- "have", thus "have two things in mind". Or at least that is vastly more likely.

    August 28, 2009

  • doubt comes into my mind when I feel so weak.

    January 22, 2013