Definition from Wiktionary, the free dictionary
- Rhymes: -ɪfi
- (slang) Of dubious authenticity, legitimacy or legality.
- He's selling new CD players for £20 each - that sounds a bit iffy to me.
- Uncertain or chancy.
- The weather is still iffy for Saturday's shuttle launch.
Related terms 
Of dubious authenticity, legitimacy or legality