Downfall1. (n.) A sudden fall; a body of things falling.
2. (n.) A sudden descent from rank or state, reputation or happiness; destruction; ruin.
Thesaurus Entries
Waterloo, atrophy, bane, beating, bouleversement, brash, breakdown, burst of rain, cascade, cataract, chute, cloudburst, collapse, comedown, conquering, conquest, convulsion, crash, cropper, deathblow, debacle, decadence, declension, declination, decline, defeat, deflation, defluxion, degeneracy, degeneration, degradation, deluge, descending, descension, descent, destroyer, destruction, devolution, discomfiture, down, downbend, downcome, downcurve, downflow, downgrade, downpour, downrush, downtrend, downturn, downward trend, drencher, drop, dropping, drubbing, failure, fall, falling, flood, gravitation, gushing rain, headache, heavy rain, hiding, inclination, lambasting, lathering, licking, mastery, nose dive, overcoming, overthrow, overturn, plash, plummeting, pounce, pour, pratfall, problem, prostration, quietus, rainburst, rainspout, rainstorm, rapids, ruin, ruination, sabotage, scud, smash, soaker, soaking rain, spate, spout, stoop, stumble, subdual, subduing, subjugation, subversion, swoop, tailspin, thrashing, torrent of rain, trimming, trouble, trouncing, tumble, undoing, upheaval, upset, vanquishment, waterfall, waterspout, whipping