1. the quality or state of being morose; sullenness or gloominess of mood
Usage: formal; rare

Examples

• His morosity made him difficult to be around at parties.
• The team’s recent losses contributed to a general morosity in the locker room.
• She tried to shake off her morosity and engage with her friends.
• The gray weather seemed to match his natural morosity.
• Despite his morosity, he was still a reliable colleague.
• Her morosity lifted when she received the good news.