the condition of being extremely dirty and unpleasant, often because of lack of money

These people are forced to live in squalor. 这些人被迫生活在极度肮脏的环境里。

It was a dirty, damp, smelly flat - the usual student squalor. 那是一间脏乱、潮湿、臭烘烘的公寓——常见于学生的那种肮脏。