This is the 11315th most frequent Russian word.
депрессивный
"Depressive" or "related to depression."
Here, 'депрессивным' describes a state of mood, used as an adjective.
Её настроение стало депрессивным после долгой череды неудач.
Her mood became depressive after a long series of failures.
In this sentence, 'депрессивным' is used to describe the effect of the movie.
Этот фильм оказался намного более депрессивным, чем я ожидал.
This movie turned out to be much more depressing than I expected.
Here, 'депрессивным' is part of a compound term, denoting a medical or emotional state.