Etymology
From Middle English hedlong, alteration of hedling, heedling, hevedlynge (“headlong”), assimilated to long. More at headling.
Adverb
headlong (not comparable)
- With the head first or down.
- With an unrestrained forward motion.
Figures out today show the economy plunging headlong into recession.
1898, H.G. Wells, “The "Thunder Child."”, in The War of the Worlds, Leipzig: Bernhard Tauchnitz, retrieved 24 November 2022, page 175:When his eyes were clear again, he saw the monster had passed and was rushing landward. Big iron upper-works rose out of this headlong structure, and from that twin funnels projected, and spat a smoking blast shot with fire into the air. It was the torpedo-ram, Thunder Child, steaming headlong, coming to the rescue of the threatened shipping.
2018 October 17, Drachinifel, 24:24 from the start, in Last Ride of the High Seas Fleet - Battle of Texel 1918, archived from the original on 4 August 2022:Realizing he is now boxed in on all sides, Hipper decides the only remaining card he has to play is to sell his ships as dearly as possible. The remaining German ships make a hard turn southeast, and drive headlong at the Grand Fleet. It is a brave gesture, but only eight of the ships emerge from the pall of smoke that roughly marks the original German line of advance. Two more emerge minutes later, but that is all.
- Rashly; precipitately; without deliberation; in haste, hastily.
Translations
with the head first or down
with an unrestrained forward motion
in haste, hastily, without deliberation
Adjective
headlong (comparative more headlong, superlative most headlong)
- Precipitous.
- Plunging downwards head foremost.
1993, Michael Hume Jackson, Galapagos, a Natural History, page 143:On sighting their prey, they check their flight and hurtle in a headlong dive to the sea.
- Rushing forward without restraint.
1900, James George Frazer, The Golden Bough, volume 3, page 243:Bumps, bruises, and scratches are often the result of their efforts to outstrip each other in the headlong race.
- (figuratively) Reckless; impetuous.
1869, R[ichard] D[oddridge] Blackmore, Lorna Doone: A Romance of Exmoor. […], volume II, London: Sampson Low, Son, & Marston, […], →OCLC:“Time is up,” cried another boy, more headlong than head-monitor.
Translations
precipitous
- Bulgarian: прибързан (bg) (pribǎrzan)
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plunging downwards head foremost
- Bulgarian: с главата напред (s glavata napred)
- Norwegian: med hode først
- Old English: neowol
- Spanish: de cabeza
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rushing forward without restraint
Verb
headlong (third-person singular simple present headlongs, present participle headlonging, simple past and past participle headlonged)
- (transitive) To precipitate.
1862, Thomas Adams, The works of Thomas Adams:If a stranger be setting his pace and face toward some deep pit, or steep rock — such a precipice as the cliffs of Dover — how do we cry aloud to have him return ? yet in mean time forget the course of our own sinful ignorance, that headlongs us to confusion.
1905, Liberty Hyde Bailey, The outlook to nature:Carriages went up and down in endless pageant. Trolley-cars rushed by, clanging and grinding as they headlonged into the side streets.