dirty or immoral
sordid - dirty
If something is described as being ‘sordid’ then it is thought to be dirty or squalid and therefore physically unpleasant. However, the word can also be used to express immoral or dishonest behaviour that can cause spiritual degradation.
The tabloid newspaper revealed all the sordid details of the politician’s affair.
I was going to offer Emily the job until I found out about her sordid past.
John hated living in that part of the city because of the sordidness of the area.