When you're talking about rotten deals, there are plenty of synonyms that can be used to convey the same meaning. Bad contracts, terrible agreements, shady agreements, and fishy arrangements are all examples of ways to describe a bad deal. Other synonyms include scam, fraud, ripoff, swindle, or con, which all refer to deals that are designed to benefit one party over the other. Think twice before making any deals, and always examine the fine print to ensure you're getting a fair deal. In the end, It's always best to avoid rotten deals altogether.