squalid

foul filthy 
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Squalid

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.
Found on http://www.encyclo.co.uk/webster/S/177

Squalid

• (a.) Dirty through neglect; foul; filthy; extremely dirty.
Found on http://thinkexist.com/dictionary/meaning/squalid/
No exact match found