dubious
adjective uk/ˈdʒuː.bi.əs/ us/ˈduː.bi.əs/
C2 半信半疑的，可疑的；不确定的；不可信的
thought not to be completely true or not able to be trusted
These claims are dubious and not scientifically proven. 这些说法未经科学证实，有些可疑。
He has been associated with some dubious characters. 他曾经与一些可疑人物有交往。
Ruth Ellis has the dubious (= bad) distinction of being the last woman to be hanged in Britain. 露丝‧埃利斯背负着英国最后一个被绞死的女人这样一个恶名。
C2 怀疑的；无把握的
feeling doubt or not feeling certain
I'm dubious about his promises to change his ways. 他承诺将改变行事方式，我对此有些怀疑。
- More examples
- We were always a bit dubious about the advantages these changes would actually bring.
- Let us think for a moment about the dubious benefits of nuclear technology.
- He's under investigation because of his dubious accounting practices.
- How exactly did they work out these figures? I think they're a bit dubious, personally.
- He was involved in some dubious activities in the past which his former colleagues have only hinted at.