a. Dull; stupid; sad; moping; melancholy. “ A . . . dumpish and sour life.” Lord Herbert.
-- Dump"ish*ly, adv. -- Dump"ish*ness, n. [ 1913 Webster ]
v. t. [ 1st pref. un- + dumpish. ] To relieve from the dumps. [ Obs. ] Fuller. [ 1913 Webster ]