dodgy

"Asked why, a spokesman gave a dodgy answer about legal ramifications."

"Never listen to dodgy advice."

"The man selling watches on the street seemed a bit dodgy, so I didn't buy one. "

"This is a slightly dodgy plan, because there is a lot that is being changed for this fix."

""The man selling watches on the street corner seemed dodgy, so I didn't buy one from him." "

"The new coffee machine at work makes a really dodgy noise, like it's about to explode. "