Headstrong (RV), Heady (AV)

lit. means "falling forwards" (from pro, "forwards," and pipto, "to fall"); it is used metaphorically to signify "precipitate, rash, reckless," and is said (a) of persons, 2Ti 3:4; "headstrong" is the appropriate rendering; (b) of things, Act 19:36, RV, "(nothing) rash" (AV, "rashly").