Definitions of doubtful

  1. open to doubt or suspicion; "the candidate's doubtful past"; "he has a dubious record indeed"; "what one found uncertain the other found dubious or downright false"; "it was more than dubitable whether the friend was as influential as she thought"- Karen Horney Wordnet Dictionary DB
  2. Not settled in opinion; undetermined; wavering; hesitating in belief; also used, metaphorically, of the body when its action is affected by such a state of mind; as, we are doubtful of a fact, or of the propriety of a measure. Webster Dictionary DB
  3. Admitting of doubt; not obvious, clear, or certain; questionable; not decided; not easy to be defined, classed, or named; as, a doubtful case, hue, claim, title, species, and the like. Webster Dictionary DB
  4. Characterized by ambiguity; dubious; as, a doubtful expression; a doubtful phrase. Webster Dictionary DB
  5. Fearful; apprehensive; suspicious. Webster Dictionary DB
  6. Of uncertain issue; questionable; hazardous; insecure; dubious. The Winston Simplified Dictionary. By William Dodge Lewis, Edgar Arthur Singer. Published 1919.
  7. Full of doubt: undetermined: not clear: not secure: suspicious: not confident. The american dictionary of the english language. By Daniel Lyons. Published 1899.
  8. Undetermined; uncertain; suspicious; unsafe. The Clarendon dictionary. By William Hand Browne, Samuel Stehman Haldeman. Published 1894.
  9. Not settled in opinion; uncertain; ambiguous, or not clear in meaning; admitting of doubt; of uncertain issue; suspicious; not confident; not clearly defined. Nuttall's Standard dictionary of the English language. By Nuttall, P.Austin. Published 1914.
  10. Uncertain; obscure; not clear or obvious. Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.

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Usage examples for doubtful

  1. He was somewhat doubtful until he caught the General's eye, and then he thought that nothing would be easier. – A Little Union Scout by Joel Chandler Harris
  2. He broke the seal, as he himself stated, with a trembling hand, but this last is doubtful – Quicksands by Adolph Streckfuss