Synonyms of slumping

1 Syllable
dip, low, sag, trough, drop, fall, crash, bust, funk, blight, dumps, down, slip, rut
2 Syllables
downswing, bottom, earthward, downer, letdown, flagging, downtrend, aging, descent, downturn, slide
3 Syllables
stagnation, falling-off, downslide, recession, bottomward, lessening, reverse, depression, collapse
4 Syllables
depreciation