1. infested with or full of vermin (small harmful animals or insects)
2. resembling or characteristic of vermin; vile or repulsive
Usage: often used figuratively

Examples

• The abandoned warehouse was verminous, crawling with rats and cockroaches.
• Health inspectors condemned the verminous restaurant kitchen.
• The old mattress was verminous and had to be thrown away immediately.
• She described his behavior as verminous and unforgivable.
• The verminous conditions in the basement made it uninhabitable.
• Workers wore protective gear when cleaning the verminous storage area.