Dodgier

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

"Never listen to dodgy advice."

"I am sure you wouldn't want to be seen buying dodgy gear, would you? (stolen goods)."

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

"He's a dodgy Peeping Tom."

"I'm feeling dodgy today, probably got the flu."