keyless
/ˈkiːləs/
adjective
- Not requiring a physical key to operate, especially a lock or ignition system.
- The hotel room door has a keyless lock that opens with a card.
- Many modern cars come with a keyless ignition, so you just push a button to start.
- The new apartment has a keyless entry system that uses a code.
- Having no keys (as on a keyboard or musical instrument).
- The keyless safe uses a fingerprint scanner for access.
- The keyless door lock is more convenient than carrying a metal key.
- Some electronic pianos are keyless and use touch-sensitive pads instead.