IPA: /məˈroʊz.nəs/
KK: /mɔˈroʊz.nəs/
A state of being gloomy or sad, often characterized by a lack of cheerfulness or joy.
His moroseness made it difficult for others to enjoy the party.
Moroseness → It is formed from "morose" (from Latin *morosus*, meaning sullen or gloomy) and the suffix "-ness" (meaning the state or quality of). The word "moroseness" refers to the state of being sullen or gloomy.
Think of the word 'morose' which means gloomy, and remember that 'moroseness' describes the quality of being gloomy.