Albanian
zëvendëskryeredaktori
(21 letters) deputy editor-in-chief
Kundërzhurmëkrijuesabërësave
(27 letters) against noisemakers
Bulgarian
neprotivokonstitutsionstvuvatelstvuvayte
(40 letters) something against constitution
Catalan
anticonstitucionalment
(22 letters) unconstitutionally
Croatian
prijestolonaslijednikovica
(26 letters) the wife of a heir to the throne
Czech
nejneobhospodarovávatelnejšími
(30 letters) the less farmed
Danish
Speciallægepraksisplanlægningsstabiliseringsperiode
(52 letters) period where a specialist doctors planning of the practice is stabilized
Økonomiprofessorassistentsuddannelse
(36 letters) an education to be an assistant for a professor in economics
Dutch
kindercarnavalsoptochtvoorbereidingswerkzaamheden
(48 letters) preparation activities for a children’s carnival procession
hottentottententententoonstelling
(33 letters) the exhibition of the tents of the Hottentot-tribe
English
As for the English language, there are somewhat fanciful claims for extremely long words. However, more realistically here are the following in descending length:
pneumonoultramicroscopicsilicovolcanoconiosis
(45 letters) the longest word in a major dictionary, a technical word for a lung disease created by silica dust inhalation
supercalifragilisticexpialidocious
(34 letters) from the Mary Poppins film and musical with a fanciful defintion
hippopotomonstrosesquipedalianism
(33 letters) which means the love of long words
pseudopseudohypoparathyroidism
(30 letters) the longest non-coined word in a major dictionary for a specific inherited medical disorder
floccinaucinihilipilification
(29 letters coined in 1741) meaning the categorizing of something that is useless or trivial (the longest unchallenged non-technical word)
antidisestablishmentarianism
(28 letters) the longest non-coined and non-technical word
hippopotomonstrosesquipedaliophobia
(35 letters) the fear of long words
Estonian
raudteeülesõidukoht
(19 letters) train crossing point
Finnish
lentokonesuihkuturbiinimoottoriapumekaanikkoaliupseerioppilas
(61 letters) technical warrant officer trainee specialized in aircraft jet engines
käsipyyherullajärjestelmä
(25 letters) an automatic towel system for drying your hands
peruspalveluliikelaitoskuntayhtymä
(34 letters) a municipality providing basic services
metroraideliityntäpysäköintiyhdistelmäajoneuvoparkkialue
(56 letters) combined vehicles parking area with access to metro rail
French
anticonstitutionnellement
(25 letters) unconstitutionally
intergouvernementalisation
(26 letters) intergovernmentalisation
German
Grundstücksverkehrsgenehmigungszuständigkeitsübertragungsverordnung
(67 letters) a regulation about competences
Donaudampfschifffahrtsgesellschaft
(34 letters) Danube steamship company
Geschwindigkeitsbegrenzung
(26 letters) speed limit
Greek
υποδηματοεπιδιορθωτήριον
(24 letters) by mending shoes
ωτορινολαρυγγολόγος
(19 letters) otolaryngologist (throat-ear-nose specialist)
ακτινοχρυσοφαιδροβροντολαμπροφεγγοφωτοστόλιστος
(47 letters) dressed in golden-shining, thundering and incandescent clothes
σκουληκομυρμηγκότρυπα
(21 letters) an anthill
φαλαινοκαρχαρίας
(16 letters) whale shark
Hungarian
megszentségtelenithetetlenségeskedéseltekért
(44 letters) “for your unprofaneable actions”
legmegvesztegethetetlenebbek
(28 letters) the least corruptible ones
Icelandic
vaðlaheiðarvegavinnuverkfærageymsluskúrslyklakippuhringurinn
(60 letters) the key ring to the tool work shed in the road works of Vaðlaheiði
Italian
precipitevolissimevolmente
(26 letters) to do something in a hurry
psiconeuroendocrinoimmunologia
(30 letters) a discipline that deals with the relationship between the functioning of the nervous system, the immune system and the endocrine system
Latin
honorificabilitudinitatibus
(27 letters) the state of being able to achieve honours (the longest word in Shakespeare from Love’s Labour’s Lost)
Latvian
pretpulksteņrādītājvirziens
(28 letters) in a counter-clockwise direction
Virsapakšcepure
(15 letters) underneath hat
Lithuanian
nebeprisikiškiakopusteliaudavome
(30 letters) we didn't pick rabbit cabbage
Polish
konstantynopolitańczykowianeczka
(32 letters) a girl living in Constantinople
Portuguese
anticonstitucionalissimamente
(29 letters) unconstitutionally
Romanian
otorinolaringologie
(19 letters) Otorhinolaringology
sternocleidomastoidian
(22 letters) the sternocleidomastoid muscle that is located in the front of the neck
pneumoultramicroscopicosilicovulcaniconioza
(49 letters) pneumonoultramicroscopicsilicovolcaniconiosis. lung disease caused by inhalation of volcanic silicon dust
Russian
тетрагидропиранилциклопентилтетрагидропиридопиридиновые
(55 letters) Chemical substance
Serbian
prestolonaslednikovica
(22 letters) wife of the Crown Prince
деведесетдеветогодишњакиња
(26 letters) a ninety-nine-year-old woman
Slovenian
dialektičnomaterialističen
(26 letters) dialectical materialistic
starocerkvenoslovanšcina
(24 letters) Old Church Slavik Language
Slovak
najnevypočítavatelnejší
(23 letters) the most difficult example to calculate
najneobhospodárovatel'nejší
(26 letters) the less farmed
Spanish
anticonstitucionalmente
(23 letters) unconstitutionally
(21 letters) person who favors or is part of the counter-revolution
electroencefalografista
(23 letters) electroencephalographists, specialists in the brain measurement technology of electroencephalography (EEG)
Swedish
nordvästersjökustartilleriflygspaningssimulatoranläggningsmaterielunderhåll – suppföljningssystemdiskussionsinläggsförberedelsearbeten
(131 letters) north west sea coastal artillery reconnaissance flight simulator facility equipment maintenance follow-up discussion posts preparatory work
Turkish
Afyonkarahisarlilardanlarmis
(28 letters) They are said to belong to the family that came from Afyonkarahisar
Muvaffakiyetsizlestiricilestiriveremeyebileceklerimizdenmissinizcesine
(70 letters) As if you would be from those we can not easily/quickly make a maker of unsuccessful ones
çekostravakyalılardanmısınızsiz?
(31 letters) Are you from çekostravakyalı?
Ukranian
рентгеноелектрокардіографічного
(31 letters) x-ray electrocardiographic
Welsh
Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch
(58 letters) village on the island of Anglesey in Wales, literal meaning: St Mary's in Hollow of the White Hazel near to the Rapid Whirlpool of Llantysilio of the Red Cave