wireless UK /ˈwaɪə.ləs/US /ˈwaɪ(jə)ɹ.ləs/noun 3adjective 2verb 1forms 3 noun3 •The medium of radio communication.Only about a hundred years ago, wireless was a new technology. •A wireless connectivity to a computer network.If your wireless stops working, try restarting the router. •(UK, old-fashioned) A radio set.Let's switch on the wireless and listen to the news. adjective2 •Not having any wires. •Functioning without an external wired connection. verb1 •(no longer used, old-fashioned) To send (a message) by wireless or radio.At 3:30 A.M. a huge Zeppelin flew across the British battle line, wirelessing down to any Germans still to the westward the best way to get home. — 1919 formswirelessed · wirelessing · wirelesses