1) Like some loans 2) Unbarred 3) Unbolted 4) Unfastened 5) Unlatched 6) Unlocked 7) Without financial security 1) Loose 2) Unbarred 3) Unbolted 4) Unfastened 5) Unguaranteed 6) Unlatched 7) Unlocked 8) Unsafe 
In collection or bankruptcy proceedings, a debt or a claim is unsecured if there is no collateral, or to the extent the value of collateral is less than the amount of the debt.
A loan where no collateral or security is given or charged to the lender. Unsecured lending is viewed as higher risk than secured lending and interest rates are generally higher to reflect this.
Is a credit instrument which a lower priority of claim against a borrower. This compares to Secured Debt. 
not secured, esp. not insured against loss, as by a bond or pledge: an unsecured loan. · not made secure, as a door or lock of hair; unfastened. · not protected against tapping or interception, as a telephone line or radio communication.