noun a mental state characterized by a pessimistic sense of inadequacy and a despondent lack of activity
noun a long-term economic state characterized by unemployment and low prices and low levels of trade and investment
noun a sunken or depressed geological formation
noun a period during the 1930s when there was a worldwide economic depression and mass unemployment
noun an air mass of lower pressure; often brings precipitation
noun a state of depression and anhedonia so severe as to require clinical intervention
noun a concavity in a surface produced by pressing
Source: WordNet 3.1, Princeton University
