[grʌm]
adj.
闷闷不乐的,阴郁的

Grum \Grum\ (gr[u^]m), a. [Cf. Dan. grum furious, Sw. grym, AS.
gram, and E. grim, and grumble. [root]35.]
1. Morose; severe of countenance; sour; surly; glum; grim.
``Nick looked sour and grum.'' --Arbuthnof.

2. Low; deep in the throat; guttural; rumbling; as, a grum
voice.