Depressing means making people feel low in spirits. Depressing news, a depressing sight, deeply depressing.
It describes the thing rather than the person, so a film is depressing and a person is depressed. It is not a clinical word: depression as an illness is not caused by depressing news, and the shared root confuses the two more than it should.
1adjectivedepressingMaking people feel low in spirits.
“It's so depressing when it rains every day of your holiday.”
depressing is a quality.