SQUALID

sordid

wretched and dirty as from neglect

morally degraded
SYN - seamy, sleezy, sordid
"The squalid atmosphere of intrigue and betrayal"

foul and rundown and repulsive
SYN - fly-blown, sordid
ANT - reputable
"squalid living conditions"

"He wanted nothing to do with the squalid nature of these folks."

"She had enough of the squalid atmosphere of these downtown apartment and was going to move out to the country."

"The high esteem he had of himself couldn't handle the squalid truth of his actions"