Latin squalidus rough, dirty, from squalēre to be covered with scales or dirt, from squalus dirty; perhaps akin to Latin squama scale
adjective
marked by filthiness and degradation from neglect or poverty
sordid
dirtyfilthyfoulnastysqualid mean conspicuously unclean or impure. dirty emphasizes the presence of dirt more than an emotional reaction to it. filthy carries a strong suggestion of offensiveness and typically of gradually accumulated dirt that begrimes and besmears.