The apartment building in this neighborhood is even squalider than the one we saw earlier.

The abandoned house was in a squalid condition, with trash and filth everywhere.

The squalid of the city was evident in the run-down buildings and littered streets.

The squalidness of the living conditions in the slums was heartbreaking.

The squalidity of the neighborhood was evident in the dilapidated buildings and overflowing trash cans.

The city's squalidities were evident in the run-down buildings and trash-filled streets.

The squalids in the neighborhood are causing a lot of problems.