Scruffily tells you how someone looks or how they have dressed: in an untidy, not-smart way, a little dirty or worn. "He was scruffily dressed" means the clothes were messy, old, or not cared for. It is informal. It talks about appearance, not about whether the person is good or bad — a kind person can look scruffy, and a mean person can look neat. The adjective is scruffy; this -ly form goes with a verb, like dressed or lived.