1. Low spirits; a sullen humour.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• dumes,
• cumpus,
• timps,
• dummes,
• dumbas,
• dums,
• durmis,
• umps,
• dumepd,
• dumass,
• dumpt,
• dummys,
• bummps,
• dteps,
• cumpas,
• cimps,
• dumpig,
• dmips,
• dumpd,
• pumpus

• dumpster,
• mumps,
• dump,
• pumps,
• dips,
• bumps,
• dims,
• stumps,
• LUMPS,
• dumpsite,
• jumps,
• damp,
• dams.

The adjective form of the word "dumps" is "dumpish".