stairless

stairless

(ˈstɛəlɪs)
adj
(Building) without or not consisting of stairs
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
ACCURACY RESULTS IKIMRER MICRO RAPTUR STAIRLESS Bullet Muzzle Standard Avg.
Stairless tours are available with three days' notice; call the box office.
Parking and access: lot for about 10 cars in back, with stairless entry into lounge.