Disappressing is an adjective. It is a combination of the words disappointing and depressing. It is used to describe something that is both disappointing and depressing at the same time.
Love is very disappressing, especially during a break up.
When you're feeling disappointed and depressed at the same time
When that bitch dumped me, I felt disappressed.
When something is a combination of disappointing and depressing.
man, that party was very disappressing after somebody put the billy talent CD on repeat.
combination of dissappointing and depressing.
My freinds were disappressed I didn't show.
disappointingly depressing
It's disappressing that Peter, the character on HBO's Silicon Valley, show dies in two episodes.