Top 9 Longest Word In English

In English, there are 26 Alphabets by using these alphabets can we create a word that can pronounceable by Everyone. Today In this Article We are listing out the Top 9 Longest Words in English. Know their Meanings, No of letters or Alphabets and etc. Check Out Full List Given Below.

Top 9 Longest Word In English:

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Longest Word In English

1.Word: Methionylthreonylthreonylglutaminylalanyl...isoleucine. It is the First Longest Word in English.
  • Letters: 189,819
  • Meaning: The chemical name of titin, the largest known protein
  • Dispute: Technical; not in dictionary; whether this is a word is disputed
  • Usage Note: This word has 189,819 characters in its name and takes more than an hour to pronounce.

2.Word: Methionylglutaminylarginyltyrosylglutamyl...serine. It is the second  Longest Word in English.


  • Letters: 1,909
  • Meaning: The chemical name of E. coli TrpA (P0A877)
  • Claim: Longest published word
  • Dispute: Technical

3.Word: Lopadotemachoselachogaleokranioleipsanodrimhypotrimmatosilphioparaomelitokatakechymenokichlepikossyphophattoperisteralektryonoptekephalliokigklopeleiolagoiosiraiobaphetraganopterygon. It is the Third  Longest Word in English.
  • Letters: 182
  • Meaning: A fictional dish of food
  • Claim: The longest word coined by a major author, the longest word ever to appear in literature
  • Dispute: Contrived nonce word; not in dictionary; Ancient Greek transliteration
  • The Greek word has 172 letters and 78 syllables. 
  • The transliteration has 182 Latin characters. 
  • It is the longest word ever to appear in literature according to the Guinness World Records (1990).
4.Word: Pneumonoultramicroscopicsilicovolcanoconiosis . It is the Fourth  Longest Word in English.
  • Letters: 45
  • Meaning: The disease silicosis
  • Claim: The longest word in a major dictionary
  • Dispute: Technical; contrived coinage to make it the longest word
  • This is a word coined by the president of the National Puzzlers' League as a synonym for the disease known as silicosis. 
  • It is the longest word in the English language published in a dictionary, the Oxford English Dictionary, which defines it as "an artificial long word said to mean a lung disease caused by inhaling very fine ash and sand dust".

5.Word: Supercalifragilisticexpialidocious. It is the Fifth  Longest Word in English.


  • Letters: 34
  • Meaning: Unclear in source work, has been cited as a nonsense word
  • Claim: Made popular in the Mary Poppins film and musical
  • Dispute: Contrived coinage
  •  This is a song and single from the 1964 Disney musical film Mary Poppins.
  •  The song was written by the Sherman Brothers, and sung by Julie Andrews and Dick Van Dyke. 
  • It also appears in the stage show version. Because Mary Poppins was a period piece set in 1910, songs that sounded similar to songs of the period were wanted.
  •  The movie version finished at #36 in AFI's 100 Years...100 Songs survey of top tunes in American cinema.

6.Word: Pseudopseudohypoparathyroidism. It is the Sixth  Longest Word in English.
  • Letters: 30
  • Meaning: A medical disorder
  • Claim: The longest non-contrived word in a major dictionary.
  • Dispute: Technical
  • Pseudopseudohypoparathyroidism (PPHP) is an inherited disorder, named for its similarity to pseudohypoparathyroidism in the presentation. 
  • It is more properly Albright hereditary osteodystrophy although without the resistance of parathyroid hormone frequently seen in that affliction.
  •  The term pseudopseudohypoparathyroidism is used to describe a condition where the individual has the phenotypic appearance of pseudohypoparathyroidism type 1a but has (unexpected for the phenotype) normal labs including calcium and PTH.

7.Word: Floccinaucinihilipilification. It is the Seventh  Longest Word in English.
  • Letters: 29
  • Meaning: The act of regarding something as unimportant
  • Claim: Longest unchallenged nontechnical word
  • Dispute: Contrived coinage
  • Usage Note: 
  • Often cited as the longest non-technical word in the English language, being one letter longer than the commonly cited antidisestablishmentarianism.
  •  It is the longest word ever recorded by Hansard after Conservative MP Jacob Rees-Mogg used the word in Parliament on 21st February 2012.

8.Word: Antidisestablishmentarianism. It is the Eighth  Longest Word in English.


  • Letters: 28
  • Meaning: The political position of opposing disestablishment
  • Claim: Longest non-contrived and the nontechnical word
  • Dispute: Not all dictionaries accept it due to a lack of usage.
  • It is notable for its unusual length of 28 letters and 12 syllables and is one of the longest words in the English language.
  •  It has been cited as the longest word in the English language (excluding coined and technical terms), although some sources say that it is not used enough to carry that title.
  • The longest word found in a major dictionary is pneumonoultramicroscopicsilicovolcanoconiosis, but this is a technical term that was coined specifically to be the longest word.
  • The word became known in the public realm in the United States via a popular television show in the 1950s, The $64,000 Question when a young contestant correctly spelled it to win. 
  • A slightly longer – but less commonly accepted – variant of the word can be found in the Duke Ellington song “You’re Just an Old Antidisestablishmentarianismist”; although the correct construction of the word used in the song should be "antidisestablishmentarianist" (without theism), or "antidisestablishmentarian".
  • Antidisestablishmentarianism is a political position that originated in 19th century Britain. 
  • The position opposed proposals at that time to remove the Anglican Church's status as the established church of England, Ireland, and Wales, but not in Scotland, which had and still has its own separate national church.

9.Word: Honorificabilitudinitatibus. It is the Ninth  Longest Word in English.
  • Letters: 27
  • Meaning:  The state of being able to achieve honors
  • Claim: The longest word in Shakespeare's works; the longest word in the English language featuring alternating consonants and vowels
  • Dispute: Latin

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