headless

English

Etymology

From Middle English heedles, hevedles, from Old English hēafodlēas (“headless”), equivalent to head +‎ -less. Cognate with Dutch hoofdloos (“headless”), Danish hovedløs (“headless”), Swedish huvudlös (“headless”), Icelandic höfuðlaus (“headless”).

Pronunciation

• IPA^(key): /ˈhɛdləs/

• Audio (Southern England):

  (file)

• Rhymes: -ɛdləs

Adjective

headless (not comparable)

1. Without a head (body part).
   1. Synonym of decapitated.

      Synonyms: beheaded, deheaded

      How did the headless horseman see to chase Ichabod?

   2. Naturally having and needing no head.

      headless invertebrates

2. Without a head (hardware or device feature).

   Synonym: unheaded

   a headless nail;   a headless set screw

3. Without leadership.

   Synonym: leaderless

   Coordinate term: rudderless

   The headless army blundered along after the death of their general, accomplishing nothing.

   • 1614, Walter Ralegh [i.e., Walter Raleigh], The Historie of the World […], London: […] William Stansby for Walter Burre, […], →OCLC, (please specify |book=1 to 5):

     His forsaken soldiers, being now a headless company, and no longer an army to be feared, obtained nevertheless a reasonable composition from the Carthaginians […]

4. (linguistics, of a phrase or compound) Not having a head morpheme or word.
5. (computing) Running without a graphical user interface; running without any attached output device (e.g., monitor) or input device (e.g., keyboard, mouse).
   • 2003, William Boswell, Inside Windows Server 2003, Addison-Wesley, →ISBN, page 62:

     /redirect. Used for console redirection in headless servers.

   • 2007, Carla Schroder, Linux Networking Cookbook, O’Reilly Media, published 2008, →ISBN, page 47:

     Routers typically run headless, without a keyboard or monitor.

   • 2010, Charles Bell et al., MySQL High Availability: Tools for Building Robust Data Centers, O'Reilly Media, →ISBN, page 278:

     This is not unexpected for a Windows system running as a virtual machine or a headless server […]

6. (of beer) Without a head of foam.
7. (obsolete) Heedless.
   • 1579, E. K. (Edward Kirke?), Notes on Spenser’s The Shepheardes Calender

     If any one will rashly blame such his choice of old and unwonted words, him may I more justly blame and condemn, either of witless headiness in judging, or of headless hardiness in condemning.

   • 1579, Immeritô [pseudonym; Edmund Spenser], The Shepheardes Calender: […], London: […] Hugh Singleton, […], →OCLC:

     THENOT: Cuddy, I wot thou kenſt little Good, / So vainly to advance thy headleſs Hood.

8. (obsolete, firearms) Rimless, not having a cartridge case rim (flange).

   A headless shell doesn't have a flange.

Derived terms

• headless browser
• headless genitive
• headless horseman
• Headless Horseman
• headless horsewoman
• Headless Horsewoman
• headlessly
• headlessness
• headless over heels
• like a headless chicken
• like a headless chook
• run around like a headless chicken

Translations

without a head

• Catalan: acèfal
• Chinese:

  Mandarin: 無頭的 / 无头的 (zh) (wútóu de)

• Czech: bezhlavý (cs) m
• Esperanto: senkapa
• Finnish: päätön (fi)
• French: sans tête (fr) m or f, acéphale (fr) m or f, décapité (fr) m
• German: kopflos (de)
• Greek: ακέφαλος (el) m (akéfalos)

  Ancient: ἀκέφαλος (aképhalos)

• Ido: senkapa (io)
• Lithuanian: begalvis
• Middle English: heedles
• Polish: bezgłowy (pl)
• Portuguese: acéfalo (pt)
• Russian: безголо́вый (ru) (bezgolóvyj), обезгла́вленный (ru) (obezglávlennyj) (decapitated)
• Scots: heidless
• Serbo-Croatian:

  Cyrillic: безглав

  Roman: bezglav (sh)

• Turkish: başsız (tr)
• Welsh: di-ben