unpleasant and or poor quality

5 letters having a lot of dust

d...

in bad condition due to use. Synonym of scruffy

 in bad condition and not cared for

in very bad condition and in need of repair

having far too many things in an untidy way

6 letters covered with mould or containing it.

m...

not bright

does not have enough space for people to be in it

unpleasant because there is a lot of air coming in

of furniture or parts of buildings weak, old and likely to break

 very dirty and unpleasant synonym of sordid