1. comparative form of frowsy; more stuffy, musty, or stale in atmosphere
Usage: chiefly British; informal
2. comparative form of frowsy; more unkempt, slovenly, or dingy in appearance
Usage: chiefly British; informal

Examples

• The frowsier the room became, the more we wanted to open a window.
• Her apartment was frowsier than I remembered from last year.
• The old hotel lobby smelled frowsier than ever after the renovation was delayed.
• He looked frowsier in his wrinkled suit than he had at the previous meeting.
• The frowsier corners of the library were rarely visited by students.