· a mental state characterized by a pessimistic sense of inadequacy and a despondent lack of activity

Hypernym(s): psychological_state, psychological_condition, mental_state, mental_condition

Antonym(s): elation

· a long-term economic state characterized by unemployment and low prices and low levels of trade and investment

Synonym(s): slump, economic_crisis

Hypernym(s): economic_condition, crisis

· a sunken or depressed geological formation

Synonym(s): natural_depression

Hypernym(s): geological_formation, formation

Antonym(s): natural_elevation

· sad feelings of gloom and inadequacy

Hypernym(s): sadness, unhappiness

· a period during the 1930s when there was a worldwide economic depression and mass unemployment

Synonym(s): Depression, Great_Depression

· an air mass of lower pressure; often brings precipitation; "a low moved in over night bringing sleet and snow"

Synonym(s): low

Hypernym(s): air_mass

· a state of depression and anhedonia so severe as to require clinical intervention

Synonym(s): depressive_disorder, clinical_depression

Hypernym(s): affective_disorder, major_affective_disorder, emotional_disorder, emotional_disturbance

· a concavity in a surface produced by pressing; "he left the impression of his fingers in the soft mud"

Synonym(s): impression, imprint

Hypernym(s): concave_shape, concavity, incurvation, incurvature

· angular distance below the horizon (especially of a celestial object)

Hypernym(s): angular_position

· pushing down; "depression of the space bar on the typewriter"

Hypernym(s): push, pushing