flatless

adj — 2 senses

flatless

adj

Etymology From flat + -less.

1

Without a flat.

2

That will not deflate, without flatness.

In 1979, a California company began manufacturing a flatless polyurethane tire for wheelchairs.1991, Malcolm Abrams, Harriet Bernstein, More Future Stuff: Over 250 Inventions that Will Change Your Life by 2001:

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.