lugubriousness vs gloominess

lugubriousness and gloominess both are nouns.

Word	Noun	Adjective	Verb	Adverb
lugubriousness	Yes	No	No	No
gloominess	Yes	No	No	No

As nouns, lugubriousness and gloominess are synonyms defined as:

lugubriousness and gloominess: the quality of excessive mournfulness and uncheerfulness

Other synonyms of lugubriousness include sadness.

lugubriousness (noun)	gloominess (noun)
the quality of excessive mournfulness and uncheerfulness	the quality of excessive mournfulness and uncheerfulness
	The property of having a frowning or scowling appearance.
	a feeling of melancholy apprehension
	an atmosphere of depression and melancholy