Answer:
Promissory estoppel is the legal enforcement of an otherwise unenforceable contract due to a party's detrimental reliance on the contract.
Step-by-step explanation:
Promissory estoppel is a legal principle that allows a party to enforce a promise made by another party, even if the promise was not supported by consideration, if the party relied on the promise to their detriment. In other words, if one party makes a promise to another party, and the second party relies on that promise to their detriment, the first party may be estopped from denying the promise.