(1):

(a.) Rough; dark; tempestuous.

(2):

(a.) Arrogant; haughty.

(3):

(a.) Gloomily morose; ill-natured, abrupt, and rude; severe; sour; crabbed; rough; sullen; gloomy; as, a surly groom; a surly dog; surly language; a surly look.