Origin: 1540–50; <
Latin dubius; see -ous Related formsdu·bi·ous·ly, adverb
du·bi·ous·ness, noun
su·per·du·bi·ous, adjective
su·per·du·bi·ous·ly, adverb
su·per·du·bi·ous·ness, noun
EXPANDun·du·bi·ous, adjective
un·du·bi·ous·ly, adverb
un·du·bi·ous·ness, noun
COLLAPSESynonyms 1. equivocal, ambiguous, obscure, unclear.
4. undecided, uncertain, hesitant, fluctuating.
See doubtful.