1. Fall heavily or suddenly; decline markedly
   "The real estate market slumped";
   - fall off, sink
    
2. Fall or drop heavily into a seated or reclined position
   "He slumped onto the couch";
   - sink
    
3. Assume a drooping posture or carriage
   "He slumped against the pillows";
   - slouch
    
4. Fall in value
   "prices slumped";
   - decline, correct

1. A long-term economic state characterized by unemployment and low prices and low levels of trade and investment
   "The country struggled to recover from the slump";
   - depression, economic crisis
    
2. A noticeable deterioration in performance or quality
   "the team went into a slump";
   - slack, drop-off, falloff, falling off

Derived forms: slumped, slumps, slumping

Type of: break, cave in, collapse, come down, crisis, declension [archaic], decline in quality, descend, deterioration, droop, drop, economic condition, fall in, flag, founder, give, give way, go down, sag, swag, worsening

Encyclopedia: Slump