depressed

The definition of depressed is someone in a sad or unhappy state, or something that has been pushed down.

(adjective)

A person who cannot shake his sadness and who has to take Prozac is an example of someone who is depressed.
When the economy is struggling due to high unemployment rates and lack of consumer confidence, this is an example of a depressed economy.

See depressed in Webster's New World College Dictionary

adjective

pressed down
lowered in position, intensity, amount, or degree
flattened or hollowed, as if pressed down
gloomy; dejected; sad
suffering from psychological depression
characterized by widespread unemployment, poverty, lack of opportunity, etc.; impoverished: a depressed area
Bot. flattened, as if from downward pressure
Zool. having the horizontal diameter longer than the vertical; broad

See depressed in American Heritage Dictionary 4

adjective

Low in spirits; dejected.
Suffering from psychological depression.
Sunk below the surrounding region: the depressed center of a crater.
Lower in amount, degree, or position: Oil reserves were at depressed levels because of increasing industrial demands.
a. Sluggish in growth or activity: a depressed sector of the economy.
b. Suffering from social and economic hardship: a depressed region.
Botany Flattened downward, as if pressed from above.
Zoology Flattened along the dorsal and ventral surfaces.