adjective
- having no tread or worn smooth (especially of tires)
Examples
- The treadless tires were dangerous on wet roads.
- He needed to replace his treadless bicycle tires before the race.
- The mechanic warned that the treadless condition made braking difficult.
- Driving on treadless tires in winter is extremely hazardous.
- The old car had treadless tires that provided no grip on the pavement.