Cashable means something that can be exchanged for cash or redeemed for cash. The antonyms of cashable are non-cashable, non-redeemable, non-negotiable, non-transferable, non-refundable, and non-convertible. Some examples of non-cashable items are gift cards, store credits, vouchers, and virtual currencies. Non-redeemable items are those that cannot be exchanged for cash, such as loyalty points, air miles, and rewards. Non-negotiable items cannot be used as a means of payment, such as checks that are marked as "not negotiable." Non-transferable items are those that cannot be given or sold to another person. Finally, non-refundable items cannot be returned or refunded for cash.