prone to crying
lachrymose - tearful
The formal word ‘lachrymose’ can be used to describe a person who is sad and likely to weep often and easily, or to refer to something that has the potential to cause tears. It is not always used in a negative sense, but an overly weepy person can be irritating. This term is rarely encountered in everyday conversation. It is almost exclusively seen in written English.
Fiona is quite a lachrymose person. Her crying often gets on my nerves because I feel it is very self-indulgent.
Sitting indoors listening to lachrymose songs is not going to help Brian’s depression. He needs to get out and engage with life.
The funeral was a very lachrymose occasion. It is always particularly sad when somebody dies so young.