: not requiring touching or interaction between people
contactless meal delivery
… many retailers and restaurants have rolled out home delivery along with contactless options, leaving food orders and grocery deliveries on door steps. Dawson White
b
: relating to or being a technological system (as for making payments) where information is transmitted over short distances (as by near field communication) without physical contact
… hold your phone in front of the contactless payment scanner to authorize the purchase. Robert Patrick
Contactless payment cards are not in wide circulation. Instead, consumers are increasingly making electronic payments with their cellular phones … Chad Bray and Reuben Kyama