iffy

adjective2

1. •
   Uncertain or chancy; risky.

   • The weather is still iffy for Saturday's rocket launch.
   • That potato salad smells a bit iffy. Don't chance it — it's not worth salmonellosis.
2. •
   (slang) Of dubious authenticity, legitimacy or legality.

   • He's selling new CD players for £20 each – that sounds a bit iffy to me.