grungy
adjective /ˈɡrʌndʒi/
  /ˈɡrʌndʒi/
(comparative grungier, superlative grungiest)
 (informal)- dirty in an unpleasant way
 - relating to grunge rock (= a type of loud rock music)
- Their grungy style of rock is still popular now.
 
 - relating to the fashion associated with grunge rock, involving layers of loose clothing and torn jeans
- She looked fashionably grungy in a pair of biker boots and an army print coat.