sideless

English

From side +‎ -less.

sideless (not comparable)

Lacking a side; open at the sides.
- 2013, Abrey Davis, Dead States: Remnant:
  It's a sideless wagon, but it should hitch up to something the horses can pull […]
- 2022 November 16, Paul Bigland, “From rural branches to high-speed arteries”, in RAIL, number 970, page 56:
  However, some things don't change. The elevated terminus has a platform canopy that's neither use nor ornament. Its high sideless roof offers little protection from rain or winds off the Thames!