What is the longest actual english word (no nonsense words)?

Answer 1

You haver to add these two together to get the real word.........
pneumono­ultra­micro­scopic ­silico­volcano­coniosis because this word is too long to be recognized as one word in this textbox.
It is a 45-letter word supposed to refer to a lung disease contracted from the inhalation of volcanic ash, but research has discovered that this word was originally intended as a hoax. It has since been used in a close approximation of its originally intended meaning, lending at least some degree of validity to its claim

Answer 2

List
Llanfairpwllgwyngyll - 20 (longest place name; Welsh)
humuhumunukunukuapuaa - 21

dihydroxyphenylalanine - 22

hexamethylenetetramine - 22

pseudomonocotyledonous - 22

honorificabilitudinity - 22

interdenominationalism - 22

gynotikolobomassophile - 22

bathysiderodromophobia - 22

dichlorodifluoromethane - 23

polytetrafluoroethylene - 23

quasihemidemisemiquaver - 23

inanthropomorphisability - 24

sphragidonychargokometes - 24 (Ancient Greek)

pseudorhombicuboctahedron - 25

honorificabilitudintatibus - 26 (longest in Shakespeare)

antidisestablishmentarianism - 28

tetramethyldiamidobenzhydrols - 29

floccinaucinihilipilification - 29 (longest in OED 1st ed.)

hippopotomonstrosesquipedalian - 30 (Mrs Byrne's Dict.)

dichlorodiphenyltrichloroethane - 31 (longest in Macquarie Dict.)

praetertranssubstantionalistically - 34 (M McShane)

supercalifragilisticexpialidocious - 34

necropurogeohydrocheirocoscinomancy - 35 (Thomas Tomkis)

cholangiocholecystocholedochectomies - 36 (Mrs Byrne's Dict.)

hepaticocholangiocholecystenterostomies - 39 (Gould's Medical Dict.)

osteoarch?matosplanchnochondroneuromuelous- 42 (TL Peacock)

pneumonoultramicroscopicsilicovolcanokoniosis - 45 (longest in OED 2nd ed. & Websters)

antipericatametaanaparcircumvolutiorectumgustpoops - 50 (Rabelais)

aequeosalinocalcalinoceraceoaluminosocupreovitriolic - 52 (Mrs Byrne's Dict.; chem)

osseocarnisanguineoviscericartilagninonervomedullary - 52 (TL Peacock)

bababadalgharaghtakamminarronnkonnbronntonnerronntuonnthunntrovarr hounawnskawntoohoohoordenenthurnuk - 100 (James Joyce)

orniscopytheobibliopsychocrystarroscioaerogenethliometeoroaustrohier oanthropoichthyopyrosiderochpnomyoalectryoophiobotanopegohydrorhabdo crithoaleuroalphitohalomolybdoclerobeloaxinocoscinodactyliogeolithop essopsephocatoptrotephraoneirochiroonychodactyloarithstichooxogelosc ogastrogyrocerobletono?noscapulinaniac
- 310 (not a real word - see appendix 2)

acetylseryltyrosylserylisoleucylthreonylserylprolylserylglutaminylph enylalanylvalylphenylalanylleucylserylserylvalyltryptophylalanylaspa rtylprolylisoleucylglutamylleucylleucylasparaginylvalylcysteinylthre onylserylserylleucylglycylasparaginylglutaminylphenylalanylglutaminy lthreonylglutaminylglutaminylalanylarginylthreonylthreonylglutaminyl valylglutaminylglutaminylphenylalanylserylglutaminylvalyltryptophyll ysylprolylphenylalanylprolylglutaminylserylthreonylvalylarginylpheny lalanylprolylglycylaspartylvalyltyrosyllysylvalyltyrosylarginyltyros ylasparaginylalanylvalylleucylaspartylprolylleucylisoleucylthreonyla lanylleucylleucylglycylthreonylphenylalanylaspartylthreonylarginylas paraginylarginylisoleucylisoleucylglutamylvalylglutamylasparaginylgl utaminylglutaminylserylprolylthreonylthreonylalanylglutamylthreonyll eucylaspartylalanylthreonylarginylarginylvalylaspartylaspartylalanyl threonylvalylalanylisoleucylarginylserylalanylasparaginylisoleucylas paraginylleucylvalylasparaginylglutamylleucylvalylarginylglycylthreo nylglycylleucyltyrosylasparaginylglutaminylasparaginylthreonylphenyl alanylglutamylserylmethionylserylglycylleucylvalyltryptophylthreonyl serylalanylprolylalanylserine
- 1,185 (chem. in Mrs Byrne's Dict. See appendix 2)

methionylglutaminylarginyltyrosylglutamylserylleucylphenylalanylalan ylglutaminylleucyllysylglutamylarginyllysylglutamylglycylalanylpheny lalanylvalylprolylphenylalanylyalylthreonylleucylglycylaspartylproly lglycylisoleucylglutamylglutaminylserylleucyllysylisoleucylaspartylt hreonylleucylisoleucylglutamylalanylglycylalanylaspartylalanylleucyl glutamylleucylglycylisoleucylprolylphenylalanylserylaspartylprolylle ucylalanylaspartylglycylprolylthreonylisoleucylglutaminylasparaginyl alanylthreonylleucylarginylalanylphenylalanylalanylalanylglycylvalyl threonylprolylalanylglutaminylcysteinylphenylalanylglutamylmethionyl leucyalanylleucylisoleucylarginylglutaminyllysylhistidylprolylthreon ylisoleucylprolylisoleucylglycylleucylleucylmethionyltyrosylalanylas paraginylleucylvalylphenylalanylasparaginyllysylglycylisoleucylaspar tylglutamylphenylalanyltyrosylalanylglutaminylcysteinylglutamyllysyl valylglycylvalylaspartylserylvalylleucylvalylalanylaspartylvalylprol ylvalylglutaminylglutamylserylalanylprolylphenylalanylarginylglutami nylalanylalanylleucylarginylhistidylasparaginylvalylalanylprolylisol eucylphenylalanylisoleucylcysteinylprolylprolylaspartylalanylasparty laspartylaspartylleucylleucylarginylglutaminylisoleucylalanylserylty rosylglycylarginylglycyltyrosylthreonyltyrosylleucylleucylserylargin ylalanylglycylvalylthreonylglycylalanylglutamylasparaginylarginylala nylalanylleucylprolylleucylasparaginylhistidylleucylvalylalanyllysyl leucyllysylglutamyltyrosylasparaginylalanylalanylprolylprolylleucylg lutaminylglycylphenylalanylglycylisoleucylserylalanylprolylaspartylg lutaminylvalyllysylalanylalanylisoleucylaspartylalanylglycylalanylal anylglycylalanylisoleucylserylglycylserylalanylisoleucylvalyllysylis oleucylisoleucylglutamylglutaminylhistidylasparaginylisoleucylglutam ylprolylglutamyllysylmethionylleucylalanylalanylleucyllysylvalylphen ylalanylvalylglutaminylprolylmethionyllysylalanylalanylthreonylargin ylserine
- 1,913 (chem. in Mrs Byrne's Dict. See appendix 2)

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Appendix 1
The longest headwords from the Macquarie Dictionary second edition
dichlorodiphenyltrichloroethane - 31
antidisestablishmentarianism - 28
antidisestablishmentarian - 25
dichlorodifluoromethane - 23
polytetrafluoroethylene - 23
dihydroxyphenylalanine - 22
hexamethylenetetramine - 22
overcommercialisation - 21
disestablishmentarian - 21
audiomagnetotellurics - 21
electroencephalograph - 21
overindustrialisation - 21
trichloronitromethane - 21
hydrodesulphurisation - 21 (1st ed. - respelled with 'f' in 2nd ed.)
uncharacteristically - 20
counterdemonstration - 20
electroencephalogram - 20
hydrodesulfurisation - 20 (2nd ed. spelling)
Llanfairpwllgwyngyll - 20 (Welsh place name)
magnetohydrodynamics - 20
microminiaturisation - 20
tetrahydrocannabinol - 20
tetraiodofluorescein - 20
antinationalisation - 19
self-dissatisfaction - 19
unconscientiousness - 19
unselfconsciousness - 19
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Appendix 2
310 orniscop...
This 310 letter word that appears in the list is not really a word at all. The word which appeared in Ripley The Omnibus Believe It Or Not, (1931). With the note that:
``THE long word of 310 letters was used as a means of demonstrating: 1. The extent to which even the English language is capable of forming enormous word monsters, and, 2. The whole field of superstitious divinatory practices which are as old as humanity. The literal translation of the long word is "A deluded human who practices divination or forecasting by means of phenomena, interpretation of acts or other manifestations related to the following animate or inanimate objects and appearances: birds, oracles, Bible, ghosts, crystal gazing, shadows, air appearances, birth stars, meteors, winds, sacrificial appearances, entrails of humans and fishes, fire, red-hot irons, altar smoke, mice, barley, salt, lead, dice, arrows, hatchet balance, sieve, ring suspension, random dots, precious stones, pebbles, pebble heaps, mirrors, ash writing, dreams, palmistry, nail rays, finger rings, numbers, book passages, name letterings, laughing manners, ventriloquism, circle walking, wax, susceptibility to hidden springs, wine and shoulder blades. Various monastic author of the Middle Ages writing on the subject of human superstition have actually used such a long word with a slightly varying sequence of items.''

It is clearly NOT a word of the 'Middle Ages' since it uses word elements that do not date back that far, for example the '-bletono-' refers to Bletonism a word which first appeared in the C19th. I assume that Ripley merely concocted it himself. It is merely a list of the first elements of a set words ending in -mancy (eg theomancy, bibliomancy, etc.) all stuck together in one long line. Furthermore it plainly is derived from the set of such words that appeared in Roget's Thesaurus (under the head prediction 511), for the order of the elements follows exactly non-alphabetical ordering of Roget's. One assumes that the terminal element -naniac is a mistake. Presumably it should be a derivative of -mancy (the usual occupational agent termination being -mancer). Possibly -maniac was meant, it being etymologically related.

1,185 acetyl...
1,913 methion...
These last two words are respectively, the chemical name of the protein part of the tobacco mosaic virus (C785H1220N212O248S2), and the chemical name for tryptophan synthetase A protein. These appear in Mrs Byrne's Dictionary of Unusual, Obscure and Preposterous Words.

The Thomas Love Peacock words are from Headlong Hall 1816 [published (along with Nightmare Abbey) in the 'World's Classics' series, OUP, 1929: xi. 90-1]

The Thomas Tomkis word is from his 1615 play Albumazar.

The Shakespearian word comes from Love's Labour's Lost V.i. Not a coinage of Shakespeare's though. It is the ablative plural of the Latin honorificabilitudintas, which is an extension of honorificabilis meaning 'honorableness'. It first occurs in English in 1599, used by Thomas Nashe.

The Mark McShane word is from his novel Untimely Ripped 1963.

The Rabelaisian word appears in Gargantua and Pantagruel occurring there as a title of a book "Antipericatametaanaparcircumvolutiorectumgustpoops of the Coprofied".

The Joycean concoction is, not surprisingly, from Finnegan's Wake. it is meant to represent the thunder-clap that accompanied Adam & Eve in the Fall. Other 100-letter long words appear in the book.

Answer 3

We do have genuine (if rather obviously deliberate) examples in our files of antidisestablishmentarianism (28 letters) and floccinaucinihilipilification (29 letters), which are listed in some of our larger dictionaries.

But
The longest word in any major English language dictionary is pneumono­ultra­micro­scopic­ silico­volcano­coniosis, a 45-letter word supposed to refer to a lung disease contracted from the inhalation of volcanic ash, but research has discovered that this word was originally intended as a hoax. It has since been used in a close approximation of its originally intended meaning, lending at least some degree of validity to its claim.[1]

Answer 4

The longest word in any major English language dictionary is pneumono­ultra­micro­scopic­silico­volcano­coniosis, a 45-letter word supposed to refer to a lung disease contracted from the inhalation of volcanic ash, but research has discovered that this word was originally intended as a hoax. It has since been used in a close approximation of its originally intended meaning, lending at least some degree of validity to its claim.

Answer 5

No Nonsense Words

Answer 6

Strengthlessnesses, eighteen letters lengthy, is the longest note interior the English language with only one vowel repeated. A seventeen letter note with this resources is defenselessnesses. A 16 letter note with this resources is strengthlessness. a 15 letter note with this resources is defenselessness. A fourteen letter note with this resources is degenerescence. 13 letter words with this resources are degenerescent, disinhibiting, effervescence, handcraftsman, kinnikinnicks, philistinisms, primitivistic, retelemetered, and whipstitching.

Answer 7

PNEUMONOULTRAMICROSCOPICSILICOVOLCANOCONIOSIS is the longest word. It is a lung disease caused by breathing in certain particles (volcanic dusts). The previous longest word was electrophotomicrographically.

Answer 8

Antidisestablishmentarianism.

Answer 9

Pneumonoultramicroscopicsilicovulcanoconiosis.
Is a dissease produced by volcanic dust. Im telling you the truth, you can verify it.

....And english is not even my native language!s

Answer 10

You can find a list of suggested words here:
http://www.askoxford.com/asktheexperts/faq/aboutwords/longestword?view=uk