1. the quality of being grim; a serious, forbidding, or harsh appearance or manner
2. the quality of being grim; a dark, gloomy, or depressing character or atmosphere

Examples

• The grimness of the old castle's stone walls made visitors feel uneasy.
• She spoke with a grimness that showed how serious the situation had become.
• The grimness of the winter landscape stretched endlessly across the frozen plains.
• His face took on a grimness when he heard the bad news.
• The grimness of the economic forecast worried many families.
• Despite the grimness of the circumstances, she remained hopeful.