fentanyl

F4E1N1T1A1N1Y4L1
/ˈfɛn.tə.nɪl/also, sometimes[ˈfɛnʔ.nɪɫ]US, nonstandard/ˈfɛn.tə.nɑl/US, nonstandard/ˈfɛn.tə.nɔl/

noun

A synthetic opioid narcotic analgesic, C₂₂H₂₈N₂O, with pharmacological action similar to morphine that is administered transdermally as a skin patch and in the form of its citrate, C₂₂H₂₈N₂O·C₆H₈O₇, is administered orally or parenterally (as by intravenous or epidural injection); N-phenyl-N-[1-(2-phenylethyl)piperidin-4-yl]propanamide.

Similar
Sublimaze
Less commonScrabble 14

Meanings

nounfentanyl (countable and uncountable, plural fentanyls)

plural fentanyls · alternative fentanil

  1. countableuncountablemedicineA synthetic opioid narcotic analgesic, C₂₂H₂₈N₂O, with pharmacological action similar to morphine that is administered transdermally as a skin patch and in the form of its citrate, C₂₂H₂₈N₂O·C₆H₈O₇, is administered orally or parenterally (as by intravenous or epidural injection); N-phenyl-N-[1-(2-phenylethyl)piperidin-4-yl]propanamide.

    Lil Peep died of an overdose of fentanyl and generic Xanax, according to the Pima Country Office of the Medical Examiner.

    2017 December 8, Kory Grow, “Lil Peep Cause of Death Revealed”, in Rolling Stone, archived from the original on 13 Jul 2018
    5 more examples

    Approved name ! Other names ! Action and use Fentanyl .. ! 1-Phenethyl-f-(N-propionylanilino)-piperidine ! Narcotic; analgesic

    1963 November 23, British Pharmacopoeia Commission, “Approved names”, in British Medical Journal, page 1327

    Fentanyl represents the latest wave of a rolling drug epidemic that has been fueled by prescription painkillers, as addicts continue to seek higher highs and cheaper fixes. “It started out as an opioid epidemic, then heroin, but now it’s a fentanyl epidemic,” Maura Healey, the attorney general of Massachusetts, said in an interview.

    2016 March 25, Katharine Q. Seelye, “Heroin Epidemic Is Yielding to a Deadlier Cousin: Fentanyl”, in The New York Times, →ISSN, archived from the original on 09 Aug 2021

    Including, he warns, ketamine and even fentanyl. The crime syndicates have the capacity, he says, and a worldwide distribution network already in place.

    2019 July 4, Michael Sullivan, “In Myanmar, Methamphetamine, Synthetic Drug Production Soars”, in NPR, archived from the original on 06 Jul 2019

    Coolio, the gritty rapper best known for his hit “Gangsta’s Paradise,” died from the effects of fentanyl, heroin and methamphetamine, according to the Los Angeles County medical examiner.

    2023 April 6, McKenna Oxenden, “Fentanyl Contributed to Coolio’s Death, Medical Examiner Says”, in The New York Times, →ISSN, archived from the original on 14 Apr 2023

    But US drug enforcement officials noted in a May report that fentanyl primarily enters the US through Chinese producers and Mexican criminal organizations, while cocaine mainly comes from Colombia, Peru and Bolivia.

    2025 December 11, Joseph Gedeon, “US lawmakers condemn seizure of Venezuelan oil tanker: ‘Trump is sleepwalking us into a war’”, in The Guardian, →ISSN

Synonyms & antonyms

nountrade names of a narcotic analgesic that can be inhaled and that acts on the central nervous system and may become addictive; used as a veterinary anesthetic and with other drugs before, during, and after surgery; also used as a nonlethal gas to incapacitate people in hostage situations; also abused as a recreational drug

Similar
Sublimaze

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Proto-Indo-European*bʰeh₂-
  2. Proto-Indo-European*bʰh₂nyéti
  3. Proto-Hellenic*pʰáňňō
  4. Ancient Greekφαίνω (phaínō)
  5. Frenchphéno-
  6. Proto-Indo-European*swel-der.?
  7. Ancient Greekῡ̔́λη (hū́lē)
  8. Frenchphényle
  9. Englishphenyl
  10. Proto-Indo-European*h₂eydʰ-
  11. Proto-Hellenic*áitʰō
  12. Ancient Greekαἴθω (aíthō)
  13. Ancient Greekᾱ̓ήρ (āḗr)influ.?
  14. Ancient Greekαἰθήρ (aithḗr)
  15. Latinaethēr
  16. GermanÄther
  17. GermanEther
  18. Ancient Greekῡ̔́λη (hū́lē)
  19. GermanEthy
  20. Englishethyl
  21. Englishphen(yle)th(yl)
  22. Proto-Indo-European*neyH-der.?
  23. Sanskritनील॑ (nī́la)
  24. Middle Persian𐭭𐭩𐭫 (nīl)
  25. Arabicنِيل (nīl)
  26. Portugueseanil
  27. GermanAnilin
  28. Englishaniline
  29. Egyptianjmn
  30. Ancient GreekᾸ̓́μμων (Ắmmōn)
  31. LatinAmmōn
  32. Latinammoniacus
  33. Englishammonia
  34. Proto-Indo-European*dʰeh₁-
  35. Englishamide
  36. Englishanil(ide)
  37. Englishfentanyl

From phen(yle)th(yl) + anil(ide).

Full word history & related roots →

Translations

Bulgarian фентани́л
  • фентани́л (fentaníl)painkiller
Chinese Mandarin 芬太尼
  • 芬太尼 (fēntàiní)painkiller
Finnish fentanyyli
  • fentanyylipainkiller
French fentanyl
  • fentanylpainkiller
German Fentanyl
  • Fentanylpainkiller
Greek φαιντανύλη
  • φαιντανύλη (faintanýli)painkiller
Italian fentanile
  • fentanilepainkiller
Japanese フェンタニル
  • フェンタニル (fentaniru)painkiller
Polish fentanyl
  • fentanylpainkiller
Russian фентани́л
  • фентани́л (fentaníl)painkiller
Spanish fentanilo
  • fentanilopainkiller
Swedish fentanyl
  • fentanylpainkiller
Turkish fentanil
  • fentanilpainkiller
Ukrainian фентані́л
  • фентані́л (fentaníl)painkiller
Cite this entry
APA

fentanyl. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/fentanyl

MLA

“fentanyl.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/fentanyl. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “fentanyl,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/fentanyl.

Source: fentanyl on Wiktionary, CC BY-SA 4.0.