adj · adv · verb · 13 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
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Received-Pronunciation:/ˈhɛd.lɒŋ/
General-American:/ˈhɛd.lɔŋ/
cot-caught-merger:/ˈhɛd.lɑŋ/
US:Recorded audio is listed in the source snapshot.
rhymes with -ɛdlɒŋ
CMU ARPABET:HH EH1 D L AO2 NG
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
adj
Meaning 1
Precipitous.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
adj
Meaning 2
Plunging downwards head foremost.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
adj
Meaning 3
Rushing forward without restraint.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
4
adj
Meaning 4
Reckless; impetuous.
Definition source: English Wiktionary via Wiktextract
Usage: figuratively
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
5
adv
Meaning 5
With the head first or down.
Definition source: English Wiktionary via Wiktextract
Usage: not-comparable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: head first
Antonyms: feet first
6
adv
Meaning 6
With an unrestrained forward motion.
Definition source: English Wiktionary via Wiktextract
Usage: not-comparable
Examples
Figures out today show the economy plunging headlong into recession.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
7
adv
Meaning 7
Rashly; precipitately; without deliberation; in haste, hastily.
Definition source: English Wiktionary via Wiktextract
Usage: not-comparable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
8
verb
Meaning 8
To precipitate.
Definition source: English Wiktionary via Wiktextract
Usage: transitive
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
9
adjective satellite
Meaning 9
with the head foremost
Definition source: Princeton WordNet 3.0
Examples
a headfirst plunge down the stairs
a headlong dive into the pool
Meaning relationships
Synonyms: headfirst
Antonyms: none provided
10
adjective satellite
Meaning 10
excessively quick
Definition source: Princeton WordNet 3.0
Examples
made a hasty exit
a headlong rush to sell
Meaning relationships
Synonyms: hasty
Antonyms: none provided
11
adverb
Meaning 11
with the head foremost
Definition source: Princeton WordNet 3.0
Examples
the runner slid headlong into third base
Meaning relationships
Synonyms: headfirst
Antonyms: none provided
12
adverb
Meaning 12
in a hasty and foolhardy manner
Definition source: Princeton WordNet 3.0
Examples
he fell headlong in love with his cousin
Meaning relationships
Synonyms: rashly
Antonyms: none provided
13
adverb
Meaning 13
at breakneck speed
Definition source: Princeton WordNet 3.0
Examples
burst headlong through the gate
Meaning relationships
Synonyms: precipitately
Antonyms: none provided
History
Etymology
From Middle English hedlong, alteration of hedling, heedling, hevedlynge (“headlong”), assimilated to long. More at headling.
Across languages
Translations
63 source translations are retained for this English entry.
Bulgarian:
прибързан
(pribǎrzan)
— precipitous
Bulgarian:
с главата напред
(s glavata napred)
— plunging downwards head foremost
Norwegian:
med hode først
— plunging downwards head foremost
Old English:
neowol
— plunging downwards head foremost
Spanish:
de cabeza
— plunging downwards head foremost
Bulgarian:
стремителен
(stremitelen)
— rushing forward without restraint
Bulgarian:
буен
(buen)
— rushing forward without restraint
Norwegian:
hals over hode
— rushing forward without restraint
Plautdietsch:
onbesonnen
— rushing forward without restraint
Afrikaans:
kop eerste
— with the head first or down
Bulgarian:
с главата напред
(s glavata napred)
— with the head first or down
Catalan:
de cap
— with the head first or down
Catalan:
amb cap davant
— with the head first or down
Finnish:
pää edellä
— with the head first or down
Finnish:
päistikkaa
— with the head first or down
French:
la tête la première
— with the head first or down
German:
mit dem Kopf zuerst
— with the head first or down
Irish:
i ndiaidh do chinn
— with the head first or down
Italian:
a testa in avanti
— with the head first or down
Latin:
praeceps
— with the head first or down
Māori:
tūpou
— with the head first or down
Norwegian Bokmål:
med hode først
— with the head first or down
Norwegian Bokmål:
hodestups
— with the head first or down
Old English:
neowol
— with the head first or down
Portuguese:
com a cabeça erguida
— with the head first or down
Russian:
голово́й вперёд
(golovój vperjód)
— with the head first or down
Serbo-Croatian:
naglavce
— with the head first or down
Serbo-Croatian:
naglavačke
— with the head first or down
Spanish:
de cabeza
— with the head first or down
Swedish:
huvudstupa
— with the head first or down
Turkish:
kafa üstü
— with the head first or down
Afrikaans:
halsoorkop
— with an unrestrained forward motion
Bulgarian:
стремително
(stremitelno)
— with an unrestrained forward motion
Finnish:
päätä pahkaa
— with an unrestrained forward motion
Finnish:
päistikkaa
— with an unrestrained forward motion
German:
kopfüber
— with an unrestrained forward motion
Ancient Greek:
ἰταμός
(itamós)
— with an unrestrained forward motion
Irish:
i ndiaidh do chinn
— with an unrestrained forward motion
Norwegian:
hals over hode
— with an unrestrained forward motion
Polish:
na oślep
— with an unrestrained forward motion
Russian:
сломя́ го́лову
(slomjá gólovu)
— with an unrestrained forward motion
Russian:
очертя́ го́лову
(očertjá gólovu)
— with an unrestrained forward motion
Russian:
стремгла́в
(stremgláv)
— with an unrestrained forward motion
Russian:
опроме́тью
(oprométʹju)
— with an unrestrained forward motion
Russian:
стреми́тельно
(stremítelʹno)
— with an unrestrained forward motion
Serbo-Croatian:
strmoglavce
— with an unrestrained forward motion
Afrikaans:
halsoorkop
— in haste, hastily, without deliberation
Aghwan:
𐔱𐕒𐕚𐕍𐔰
(bosq̇a)
— in haste, hastily, without deliberation
Bulgarian:
прибързано
(pribǎrzano)
— in haste, hastily, without deliberation
Bulgarian:
необмислено
(neobmisleno)
— in haste, hastily, without deliberation
Esperanto:
impete
— in haste, hastily, without deliberation
Finnish:
pää kolmantena jalkana
— in haste, hastily, without deliberation
German:
Hals über Kopf
— in haste, hastily, without deliberation
German:
kopfüber
— in haste, hastily, without deliberation
Italian:
a capofitto
— in haste, hastily, without deliberation
Māori:
patiko
— in haste, hastily, without deliberation
Russian:
сломя́ го́лову
(slomjá gólovu)
— in haste, hastily, without deliberation
Russian:
очертя́ го́лову
(očertjá gólovu)
— in haste, hastily, without deliberation
Serbo-Croatian:
bezglavo
— in haste, hastily, without deliberation
Spanish:
de cabeza
— in haste, hastily, without deliberation
Sranan Tongo:
wantewante
— in haste, hastily, without deliberation
Sranan Tongo:
langalanga
— in haste, hastily, without deliberation
Tamil:
தலைதெறிக்க
(talaiteṟikka)
— in haste, hastily, without deliberation