de·pres·sive 
(dĭ-prĕsĭv)
(dĭ-prĕsĭv)adj.
1. Tending to depress or lower.
2. Depressing; gloomy: "Americans entertained the depressive thought that they had ceased to be themselves" (Lance Morrow).
3. Of or relating to depression as a mood disorder.
n.
A person who is affected with depression as a mood disorder.
de·pressive·ly adv.
de·pressive·ness n.