stepless

English

Etymology

step +‎ -less

Adjective

stepless (not comparable)

1. Without a step or steps.
   • 1961 July, “Single-motor bogies on French multiple-units”, in Trains Illustrated, page 439:

     The oil-cooled transformer supplying the a.c. motor, rated at 1,090kVA, incorporates stepless voltage control on its secondary winding and weighs over 5½ tons; [...].