1) Dingy 2) Dirty 3) Disreputable 4) Mangy 5) Ratty 6) Rotten 7) Seamy 8) Seedy 9) Sleazy 10) Soiled 11) Sordid 12) Unclean 1) Dirty 2) Dirty and rundown 3) Disgusting 4) Disreputable 5) Distasteful 6) Filthy 7) Foul 8) Grimy 9) Grubby 10) Like skid row digs 11) Like the mean streets 12) Morally degraded 13) Rundown 14) Seamy 15) Seedy 16) Sleazy 17) Sordid 18) Terribly run-down 
• (a.) Dirty through neglect; foul; filthy; extremely dirty.
Squal'id adjective [ Latin squalidus , from squalere to be foul or filthy.] Dirty through neglect; foul; filthy; extremely dirty. « Uncomed his locks, and squalid his attrie.» Dryden. « Those squalid dens, which are the reproach of large capitals....
foul filthy 
[SAT terms] foul and run-down and repulsive