[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.
Methinks I should know you, and know this man;
Yet I am doubtful. --Shak.
With doubtful feet and wavering resolution.
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.
Beauty is but a vain and doubtful good. --Shak.
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]?
3. Characterized by ambiguity; dubious; as, a doubtful
expression; a doubtful phrase.
4. Of uncertain issue or event.
We . . . have sustained one day in doubtful fight.
The strife between the two principles had been long,
fierce, and doubtful. --Macaulay.
5. Fearful; apprehensive; suspicious. [Obs.]
I am doubtful that you have been conjunct
And bosomed with her. --Shak.
Syn: Wavering; vacillating; hesitating; undetermined;
distrustful; dubious; uncertain; equivocal; ambiguous;
WordNet (r) 3.0 (2006):
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,
3: unsettled in mind or opinion; "drew a few tentative
conclusions" [syn: doubtful, tentative]
Moby Thesaurus II by Grady Ward, 1.0:
159 Moby Thesaurus words for "doubtful":
Humean, Pyrrhonic, a bit thick, a bit thin, absurd, agnostic,
ambiguous, amoral, arguable, at issue, beyond belief, borderline,
chancy, clouded, confutable, conjectural, conscienceless,
contestable, contingent, controversial, controvertible, corrupt,
corrupted, criminal, crooked, dark, debatable, deniable, devious,
dishonest, dishonorable, disputable, disreputable, distrustful,
doubtable, doubting, dubious, dubitable, equivocal, evasive,
felonious, fishy, fraudulent, from Missouri, hard of belief,
hard to believe, hardly possible, hazy, hesitant, hesitating, iffy,
ill-got, ill-gotten, immoral, implausible, improbable, in dispute,
in doubt, in dubio, in question, inconceivable, incredible,
incredulous, indecisive, indefinite, indeterminate, indirect,
insecure, insidious, leery, mistakable, mistrustful, mistrusting,
moot, more than doubtful, not deserving belief, not kosher,
obscure, open, open to doubt, open to question, open to suspicion,
passing belief, precarious, preposterous, problematic, queasy,
questionable, questioning, refutable, ridiculous, rocky, rotten,
sceptical, scrupulous, shady, shaky, shameless, shifty, shy,
sinister, skeptic, skeptical, slippery, speculative,
staggering belief, suppositional, suspect, suspecting, suspicious,
tall, thick, thin, tottery, touch-and-go, treacherous, tricky,
unbelievable, uncertain, unclear, unconscienced, unconscientious,
unconscionable, unconvinced, unconvincing, undecided, undependable,
underhand, underhanded, unearthly, uneasy, unethical, ungodly,
unhealthy, unimaginable, unlikely, unpredictable, unprincipled,
unpromising, unreliable, unresolved, unsafe, unsavory,
unscrupulous, unsettled, unsound, unstable, unsteady,
unstraightforward, unsure, unthinkable, untrusting, untrustworthy,
unworthy of belief, vacillating, vague, wary, without remorse,