Longest words in English Language

This resource tries to highlight a list of some of the longest words in the English Language

Some of the longest words in the English Language are as follows:

1. Methionylthreonylthreonylglutaminylarginyl...isoleucine

Length: 189,819 letters
Meaning: The word written above is a chemical name for a protein named tintin. Words which are technical do not find an entry into dictionaries. So, it is disputable that this word is considered as longest word or not. Still, it is the longest word ever recorded in the history of English language

2. 'Lopadotemachoselachogaleokranioleipsanodrimhypotrimmatosilphioparaomelitokatakechymeno­kichlepikossyphophattoperisteralektryonoptekephalliokigklopeleiolagoiosiraiobaphetraganopterygon'

Length: 183 letters
Meaning: It was coined by a Greek comic Author Aristophanes. It actually describes a dish. All the ingredients in the dish are coined into a single word very smartly by the author. Again, coined words have no place in the English dictionary. So, this word as well does not count to be the longest word in the English language dictionary. But still, it needs a mention due to its sheer length.

3. Pneumonoultramicroscopicsilicovolcanoconiosis

Length: 45 letters
Meaning: The above word is a disease caused by the inhalation of polluted air near the volcanoes. The symptoms of the disease are similar to normal ful like symptoms: cough, cold, chest pain, etc.
The word can be spilt up as follows:
silico(like sand)
This word is officially found in every English dictionary and is the official longest word in the English literature. Guinness book of world records also has the same word as the longest word in the history of English language.

Some other long English words:

4. Pseudopseudohypoparathyroidism
Length: 30 letters

5. Hippopotomonstrosesquipedalian
Length: 30 letters

6. Floccinaucinihilipilification
Length: 29 letters

7. Antidisestablishmentarianism
Length: 28 letters

8. Honorificabilitudinitatibus
Length: 27 letters


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