“The volatility and the moroseness within rise up repeatedly out of an uncontrollable inner conviction that the world stands ready to humiliate him.”

“I was concerned I'd slip into a mass of moroseness, but that hasn't happened as yet.”

“Uncomfortable with his sudden moroseness, Caitlin decided it was time to leave and she rose from the chair.”

“Due to his constant frowning and lack of enthusiasm, his morosity became noticeable to everyone in the office.”

“This sector slightly improves its performance despite the morosity of the market.”

“This difference of opinion fails to arouse the public's interest and spawns a feeling of  morosity.”