smog
Filthy
Dirty is an adjective. Synonyms for it include filthy, messy, grubby, and grimy.
dirty, grubby, unclean, unswept
Dirty, Filthy, unclean
Unclean dirty filthy disorganized
dirty - filthy : neat - tidy (analogous relationship = synonyms) dirty - clean : disarray - organization (analogous realtionship = antonyms)
chaotic, unruly, disorganized
Antonyms of "pristine" include dirty, damaged, and polluted. Synonyms for "pristine" are immaculate, unspoiled, and untouched.
filthy, grimy, grubby, smutty, soiled, unclean, uncleanly,
scowl, frown, glower, dirty look, blaze, flare, flame
Synonyms would include filthy, grungy, or foul.