Definitions
1.verbTo precipitate.
2.adjectivePrecipitous.
3.adjectivePlunging downwards head foremost.
4.adjectiveRushing forward without restraint.
5.adjectiveReckless, impetuous.
6.adverbWith the head first or down.
7.adverbWith an unrestrained forward motion."Figures out today show the economy plunging headlong into recession."
8.adverbRashly; precipitately; without deliberation, in haste, hastily