Adjectives

(s)flyblown, maggotyspoiled and covered with eggs and larvae of flies“flyblown meat”, “a sack of maggoty apricots”
(s)flyblown, squalid, sordidfoul and run-down and repulsive“a flyblown bar on the edge of town”, “a squalid overcrowded apartment in the poorest part of town”, “squalid living conditions”, “sordid shantytowns”
(s)flyblownblemished, especially of reputation“a flyblown reputation”