morose vs saturnine

morose and saturnine both are adjectives.

Word	Noun	Adjective	Verb	Adverb
morose	No	Yes	No	No
saturnine	No	Yes	No	No

As adjectives, morose and saturnine are synonyms defined as:

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

morose (adjective)	saturnine (adjective)
showing a brooding ill humor	showing a brooding ill humor
	bitter or scornful