rasty
1. slang Having a unattractively unkempt appearance. I knew I looked pretty rasty walking around in my dressing gown in public with my hair uncombed and no makeup on, but I was just too tired to care. My cat starts looking pretty rasty when the summer humidity is at its worst.
2. slang Vile, offensive, or repugnant. There was a rasty smell coming from the sink.