Unsecured Loan A loan that is issued and supported only by the borrower's creditworthiness, rather than by some sort of collateral. Investopedia Says: Generally, a borrower must have a high credit rating to receive an unsecured loan. Commercial paper is an example of an unsecured loan. Related Terms: Collateral Commercial Loan Commercial Paper Five Cs Of Credit Loan Loan Stock Margin Margin Call Signature Loan |