1. morose, sullen, or bad-tempered; inclined to be silent and gloomy
Usage: informal; chiefly British

Examples

• He wore a glumpy expression throughout the entire meeting.
• The glumpy teenager refused to join the family celebration.
• She gave a glumpy response when asked about her day.
• His glumpy mood made it difficult for others to approach him.
• The glumpy old man sat alone in the corner, speaking to no one.