from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Subject to doubt or question; uncertain.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Capable of being doubted; susceptible of being questioned.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Liable to be doubted; uncertain.

from The Century Dictionary and Cyclopedia

  • Liable to be doubted; doubtful; uncertain.

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

  • adj. open to doubt or suspicion


from The American Heritage® Dictionary of the English Language, 4th Edition

Latin dubitābilis, from dubitāre, to doubt; see doubt.


  • Tib's keen reasonings about young Lady Penrhyn's indifference to cash, which had at first seemed but 'dubitable' to the Highland Danaë, gradually acquired force from the strength of corroborative evidence.

    Stuart of Dunleath: A Story of Modern Times

  • Indeed, the dubitable claim of a lack of similarity between Willy and Harry is clearly null and void - one merely need examine the spellings of said names!

    Making Light: Rowling's being sued for plagiarism again

  • Indeed, one character gives birth by Caesarian section, which I found inherently dubitable, and doubly so since both baby and mother survive the operation.

    Archive 2010-04-01

  • Though Astell maintains that all beliefs are dubitable, as they lack self-evidence as well as clarity and distinctness, she holds that objects of faith can share the elevated epistemic status maintained by intuitions and objects of science:

    Mary Astell

  • When they are delivered by authority they are dubitable, confused, and lack self-evidence.

    Mary Astell

  • That's a much better reason for erasing a love than achieving some dubitable victory over We-Don't-Call-Him-God!

    Amazing Spider-Man #545 Kinda Review | Comics Should Be Good! @ Comic Book Resources

  • I'll give him 4, which I don't think is reasonably dubitable.

    Archive 2006-10-01

  • Yet a viable criterion should (a) also distinguish our knowledge claims about the external world, and (b) mark solipsistic claims as dubitable to begin with.

    Pierre Gassendi

  • While the ramifications in 1953 were not what they would be today, the situation was still dubitable.

    Body of Knowledge

  • In 1932, L’École Française d’Athènes discovered in the ancient Athenian deme (township) of Archarnae a fourth-century stele on which was engraved ‘in dubitable letters of stone the true, ancient, authentic and official wording of the oath. ’” (pp. 2–3) “Less widely known [than the Oath of Hippocrates] but of equally surpassing nobility is the ancient Athenian oath of citizenship, dating probably from ‘very early times.

    Athenian Ephebic Oath


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