Capable of flight.
Having a specified number or kind of flights (of stairs, a screw thread, etc.).
Rushing forward without restraint.
Precipitous.
Reckless, impetuous.
Plunging downwards head foremost.
With an unrestrained forward motion.
Rashly; precipitately; without deliberation; in haste, hastily.
With the head first or down.
To precipitate.