Definition of dubious adjective from the Oxford Advanced Learner's Dictionary

     

    dubious

     adjective
    adjective
    BrE BrE//ˈdjuːbiəs//
     
    ; NAmE NAmE//ˈduːbiəs//
     
    Dishonest
     
    jump to other results
  1. 1[not usually before noun] dubious (about something)/(about doing something) (of a person) not certain and slightly suspicious about something; not knowing whether something is good or bad synonym doubtful I was rather dubious about the whole idea.
  2. 2(disapproving) probably not honest synonym suspicious They indulged in some highly dubious business practices to obtain their current position in the market. See related entries: Dishonest
  3. 3that 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).
  4. Word Origin mid 16th cent. (in sense (2 and 3)): from Latin dubiosus, from dubium ‘a doubt’, neuter of dubius ‘doubtful’.Extra examples some highly dubious information Kate looked dubious, but did as she was asked. She had the dubious honour of being the last woman to be hanged in England. The man who sold it to him was known to be of dubious character.
See the Oxford Advanced American Dictionary entry: dubious