1.
A ~ object is large, heavy, and lumpy. (mainly BRIT LITERARY)
She was kneading a ~ mass of dough...
Lumpen shapes began to appear out of the shadows.
ADJ: usu ADJ n
2.
If you describe people as ~, you think they are dull and clumsy. (mainly BRIT LITERARY)
The people seemed ~ and boring.
ADJ: usu ADJ n disapproval