1 [notusuallybeforenoun] ~ (about sth) / (about doing sth) (of a person) not certain and slightly suspicious about sth; not knowing whether sth is good or bad
SYNDOUBTFUL:
I was rather dubious about the whole idea.
2 (disapproving) probably not honest:
They indulged in some highly dubious business practices to obtain their current position in the market.
3 that you cannot be sure about; that is probably not good:
They consider the plan to be of dubious benefit to most families. * (ironic) She had the dubious honour of being the last woman to be hanged in England (= it was not an honour at all).
dubiously adverb
