Search Result for "doubtful": 
Wordnet 3.0

ADJECTIVE (3)

1. open to doubt or suspicion;
- Example: "the candidate's doubtful past"
- Example: "he has a dubious record indeed"
- Example: "what one found uncertain the other found dubious or downright false"
- Example: "it was more than dubitable whether the friend was as influential as she thought"- Karen Horney
[syn: doubtful, dubious, dubitable, in question(p)]

2. fraught with uncertainty or doubt;
- Example: "they were doubtful that the cord would hold"
- Example: "it was doubtful whether she would be admitted"
- Example: "dubious about agreeing to go"
[syn: doubtful, dubious]

3. unsettled in mind or opinion;
- Example: "drew a few tentative conclusions"
[syn: doubtful, tentative]



The Collaborative International Dictionary of English v.0.48:

Doubtful \Doubt"ful\, a.
   1. 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.
      [1913 Webster]

            Methinks I should know you, and know this man;
            Yet I am doubtful.                    --Shak.
      [1913 Webster]

            With doubtful feet and wavering resolution.
                                                  --Milton.
      [1913 Webster]

   2. 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.
      [1913 Webster]

            Beauty is but a vain and doubtful good. --Shak.
      [1913 Webster]

            Is it a great cruelty to expel from our abode the
            enemy of our peace, or even the doubtful friend [i.
            e., one as to whose sincerity there may be doubts]?
                                                  --Bancroft.
      [1913 Webster]

   3. Characterized by ambiguity; dubious; as, a doubtful
      expression; a doubtful phrase.
      [1913 Webster]

   4. Of uncertain issue or event.
      [1913 Webster]

            We . . . have sustained one day in doubtful fight.
                                                  --Milton.
      [1913 Webster]

            The strife between the two principles had been long,
            fierce, and doubtful.                 --Macaulay.
      [1913 Webster]

   5. Fearful; apprehensive; suspicious. [Obs.]
      [1913 Webster]

            I am doubtful that you have been conjunct
            And bosomed with her.                 --Shak.

   Syn: Wavering; vacillating; hesitating; undetermined;
        distrustful; dubious; uncertain; equivocal; ambiguous;
        problematical; questionable.
        [1913 Webster]


WordNet (r) 3.0 (2006):

doubtful
    adj 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 [syn:
           doubtful, dubious, dubitable, in question(p)]
    2: fraught with uncertainty or doubt; "they were doubtful that
       the cord would hold"; "it was doubtful whether she would be
       admitted"; "dubious about agreeing to go" [syn: doubtful,
       dubious]
    3: unsettled in mind or opinion; "drew a few tentative
       conclusions" [syn: doubtful, tentative]