slump
     n 1: a noticeable deterioration in performance or quality; "the
          team went into a slump"; "a gradual slack in output"; "a
          drop-off in attendance"; "a falloff in quality" [syn: {slack},
           {drop-off}, {falloff}, {falling off}]
     2: a long-term economic state characterized by unemployment and
        low prices and low levels of trade and investment [syn: {depression},
         {economic crisis}]
     v 1: assume a drooping posture or carriage [syn: {slouch}]
     2: fall or sink heavily; "He slumped onto the couch"; "My
        spirits sank" [syn: {slide down}, {sink}]
     3: fall heavily or suddenly; decline markedly; "The real estate
        market fell off" [syn: {fall off}, {sink}]
     4: go down in value; "the stock market corrected"; "prices
        slumped" [syn: {decline}, {correct}]
Source: WordNet® 2.0