1. (n.) The act of precipitating, or the state of being precipitated, or thrown headlong.

2. (n.) A falling, flowing, or rushing downward with violence and rapidity.

3. (n.) Great hurry; rash, tumultuous haste; impetuosity.

4. (n.) The act or process of precipitating from a solution.

Scotch mist abruptness air speed alacrity alluvion alluvium ash blood rain carelessness celerity cinder clinker deposit deposition deposits desperateness devil-may-careness diluvium dispatch downcast downpour downthrow draff dregs drizzle dross ember evening mist expedition expeditiousness fall fastness feces feverishness flight flit flurry forwardness froth furiousness gout of rain ground speed grounds hail haste hastiness heedlessness hotheadedness hurriedness hurry impatience impetuosity impetuousness impulse impulsiveness instantaneousness knots lees lightning speed loess miles per hour mist misty rain mizzle moisture moraine offscum overeagerness overenthusiasm overhastiness overthrow overturn overzealousness patter pitter-patter precipitance precipitancy precipitate precipitateness precipitousness precociousness precocity prematureness prematurity promptitude promptness quickness rain raindrop rainfall rainwater rapidity rashness recklessness round pace rpm rush scoria scum sediment sedimentation settlings sheet of rain shower showers silt sinter slag sleet smut snappiness snow snowfall soot speed speediness splatter sprinkle sublimate suddenness swift rate swiftness unfrozen hydrometeor untimeliness velocity wantonness wet wildness