V. be concave &c adj.; retire, cave in. render concave &c adj.; depress, hollow; scoop, scoop out; gouge, gouge out, dig, delve, excavate, dent, dint, mine, sap, undermine, burrow, tunnel, stave in.

The fact is, sir, my room had been just a little depressing.

Her sensitiveness was great, and contact with an unappreciative and unsympathetic public depressing to a large degree.