depression
noun
1.
a mental state characterized by a pessimistic sense of inadequacy and a despondent lack of activity
Antonym:
elation 2.
a long-term economic state characterized by unemployment and low prices and low levels of trade and investment
3.
a sunken or depressed geological formation
4.
sad feelings of gloom and inadequacy
5.
an air mass of lower pressure; often brings precipitation
6.
a state of depression and anhedonia so severe as to require clinical intervention
7.
a concavity in a surface produced by pressing
8.
angular distance below the horizon (especially of a celestial object)
9.