noun-modifying (irregular)
cashless
Describes payment methods or systems that do not use physical cash, such as credit cards, IC cards, and smartphone payments. Often used attributively before nouns like 決済 (payment) or 社会 (society).
Cashless payments have been increasing recently.
This store accepts cashless payments.
cashless system
Borrowed from English 'cashless', referring to transactions made without physical currency.