squalor
ˈskwɒlə/

the state of being extremely dirty and unpleasant, especially as a result of poverty or neglect.
"they lived in squalor and disease"
synonyms:   dirt, dirtiness, squalidness, filth, filthiness, grubbiness, grime, griminess, muck, muckiness, slumminess, foulness, vileness, poverty, wretchedness, dinginess, meanness, nastiness, seediness, shabbiness, sordidness, sleaziness, insalubrity, slovenliness, repulsiveness