dour vs glum

dour and glum both are adjectives.

Word	Noun	Adjective	Verb	Adverb
dour	No	Yes	No	No
glum	No	Yes	No	No

As adjectives, dour and glum are synonyms defined as:

Other synonyms of dour include dark, glowering, moody, morose, saturnine, sour, sullen.

dour (adjective)	glum (adjective)
showing a brooding ill humor	moody and melancholic
stubbornly unyielding	showing a brooding ill humor
harshly uninviting or formidable in manner or appearance