MOROSENESS
sulkiness, sullenness, moroseness, sourness
(noun) a sullen moody resentful disposition
moroseness, glumness, sullenness
(noun) a gloomy ill-tempered feeling
Source: WordNet® 3.1
Etymology
Noun
moroseness (usually uncountable, plural morosenesses)
Gloominess; sullenness; deep sadness.
Synonyms
• morosity
Source: Wiktionary
Mo*rose"ness, n.
Definition: Sourness of temper; sulenness.
Learn good humor, never to oppose without just reason; abate some
degrees of pride and moroseness. I. Watts.
Note: Moroseness is not precisely peevishness or fretfulness, though
often accompained with it. It denotes more of silence and severity,
or ill-humor, than the irritability or irritation which characterizes
peevishness.
Source: Webster’s Unabridged Dictionary 1913 Edition