Russian-English translations for сомнительный

ambiguous
us
The politician was criticized for his ambiguous statements and lack of precisionHe gave an ambiguous answer
doubtful
us

dubious
us
After he made some dubious claims about the company, fewer people trusted himShe was dubious about my plan at first, but later I managed to persuade her to cooperate.
iffyHes selling new CD players for £20 each – that sounds a bit iffy to me.The weather is still iffy for Saturdays shuttle launch.