1. comparative form of fusty; more smelling stale, damp, or stuffy
2. comparative form of fusty; more old-fashioned or outdated

Examples

• The basement grew fustier after the flood.
• His ideas seemed even fustier than his grandfather’s.
• The old library’s back room was fustier than the main hall.
• Her teaching methods were getting fustier each year.
• The attic air became fustier as summer progressed.
• The antique shop smelled fustier than usual today.