- with the head first; headfirst
- with uncontrolled speed and force
- recklessly; rashly; impetuously
Origin of headlongLate Middle English hedlong, altered (by associated, association with along) ; from Middle English hedelinge(s) ; from hede, head + -linge, adv. suffix
- Old Poet. steep; dizzy; precipitous: a headlong height
- with or done with the head first or foremost; headfirst
- moving with uncontrolled speed and force
- reckless; impetuous
- With the head leading; headfirst: The runner slid headlong into third base.
- In an impetuous manner; rashly: rushed headlong into an agreement.
- Done with the head leading; headfirst: a headlong dive.
- Impetuous; rash. See Synonyms at impetuous.
- Archaic Steep; sheer.
Origin of headlongFrom Middle English (bi) hedlong, alteration of (bi) hedling : hed, head; see head + -ling, in a specified direction; see –ling2.
- arselong (UK dialect)
(comparative more headlong, superlative most headlong)
(third-person singular simple present headlongs, present participle headlonging, simple past and past participle headlonged)
- To precipitate.