Collocations for depressed - adj.

be, feel, look, seem, sound
become, get, grow
You mustn't let yourself get depressed

remain, stay
make sb
It makes me depressed just looking at him.

extremely, fairly, very, etc.
deeply, seriously, severely, terribly
She became severely depressed after her mother's death.

thoroughly
increasingly
a little, slightly, etc.
mildly
chronically, clinically, suicidally
At the time he was suicidal and clinically depressed.

about
She's terribly depressed about losing her job.

by
I was depressed by our lack of progress.

be
become
remain, stay

severely, very
The shipping trade was severely depressed.

relatively
economically

Depressed is used with these nouns:
economy, market, mood, neighbourhood, patient, region, teenager