It was a fair-sized to plainly furnished in a workmanlike fashion.

Our room was scrupulously clean, if a bit cramped and plainly furnished.

It was plainly furnished, and had a large, rectangular window framed by powder blue curtains.

Like other brothels, rooms in the Lupanar were plainly furnished.

The room was plainly furnished, with no more than a desk and chair, a long deal table, and a few stools.

The main room was plainly but comfortably furnished, all softly muted pastels.

The office beyond the door was plainly furnished.

Spehn's office, vastly unlike his previous one, was small and plainly furnished.

He led the way into a small study or office on the left of the hall, plainly furnished in mahogany, with dark red leather upholstering.

To say his room was plainly furnished doesn't express it.