dubious
I
adjective
ambiguous, anceps, arguable, chancy, conditional, confusing, confutable, contestable, contingent, controversial, controvertible, debatable, dependent, disputable, doubtful, dubitative, dubius, equivocal, fallible, hazy, in dispute, in doubt, in question, incertus, insecure, moot, perplexing, provisional, questionable, refutable, shadowy, skeptical, speculative, suppositional, unascertained, unassured, unauthentic, unauthenticated, unauthoritative, uncertain, uncertified, unconfident, unconfirmed, undemonstrated, undetermined, unexplained, unlikely, unreliable, unresolved, unsound, unsure, unverifiable, vacillating, vague, wavering
II
index
aleatory (uncertain), ambiguous, controversial, cynical, debatable, disputable, doubtful, dubitative, equivocal, inconvincible, incredulous, indefinite, leery, moot, poor (inferior in quality), precarious, problematic, skeptical, speculative, suspicious (distrustful), suspicious (questionable), unbelievable, uncertain (questionable), undecided, unsettled, vague
Burton's Legal Thesaurus.
William C. Burton.
2006