I remain dubious about her motives.
I am still dubious about that plan.
I feel dubious about his honesty.
I am dubious about online video sites' business models.
I am dubious about accepting the offer of the job.
Some Syrian financial experts are dubious about sanctions, fearing they could bolster support for the regime.
The pious man is dubious about the vicious civilian’s vivid description of his vicinity to his wife.
