Found 2 items, similar to lumpen.
English → English (WordNet) Definition: lumpen lumpen adj : mentally sluggish [syn: lumpish, unthinking]
English → English (gcide) Definition: lumpen lumpen \lump"en\ adj. 1. mentally sluggish. Syn: lumpish, sluggish, unthinking. [WordNet 1.5] Lumper \Lump"er\, n. [Cf. Lamper eel.] (Zo["o]l.) The European eelpout; -- called also lumpen. [1913 Webster]