The Top 10 Longest and Difficult Words In The English Language

Posted on January 21, 2022 by Cheapest Assignment

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Commoners might find it difficult to answer exactly how many words are there in the English language. As per the second edition of the 20 volumes Oxford English Dictionary, about 171,476 words are in use in English for communication, which is a lot of words. Apart from that, have you ever been curious about what is the longest word in the English language? Well, the fun fact is there are many long words present in the English language which have the very simplest of meanings. It would be interesting when you look through the dictionary and find that these big and long words have a much smaller definition in comparison to small words. 

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You must know that many of the longest English words are coined, constructed, or are of technical terms. The coined words are founded for a specific purpose and give meaning to something that is discovered or invented. Similarly, constructed words are altered newly and form bigger words. Prefixes and suffixes are also added, which can make the words different. Then there are technical words that are associated with certain industrial things such as healthcare or other specialized fields. As per the oxford dictionary, the longest non-technical word in English is “Floxinoxinihilipilification,” which means something that is valueless, worthless, or useless. If you are ready to know some of the longest words in the English language, then read on the below list.  

Explore the ten longest words in English 

  1. Aequeosalinocalcalinoceraceoaluminosocupreovitriolic

It seems meaningful but difficult to pronounce, right? Since it has 52 letters, it is the longest word on this list. However, you would not find this word in the mainstream dictionaries. It is a very specific term that means the spa waters in Bath, England, and generally appears outside of literature. It was coined by Dr Edward Strother.  

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  1. Pneumonoultramicroscopicsilicovolcanoconiosis

This word has 45 letters in it, and it is both coined and technical. As per Oxford Dictionary, this word is noted to be fictitious. The actual meaning of this long invented term is a lung disease that is caused by inhaling very fine ash and sand dust. Later the word is shortened to form silicosis.  

  1. Hippopotomonstrosesquippedaliophobia

Now it’s time for the big word Hippopotomonstrosesquippedaliophobia that has 36 letters. This word is consists of four different parts that suggest the feeling of terror in people associated with the phobia. People with this phobia are terrified of long words. Ironic, right? This phobia is also termed sesquipedalophobia.  

  1. Supercalifragilisticexpialidocious

It is quite a positive word that means extraordinarily good and wonderful. This word has 34 letters and was specifically coined for the movie “Mary Poppins.” However, in many dictionaries, you can find the word with referencing the said movie, where “it means like want to say something but have nothing to say.” 

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  1. Hippopotomonstrosesquipedalian

It is a 30-word letter that means something in the line “pertaining to extremely long words.” Another ironic significance. Moreover, this word is an adjective form and is an extensive form of the word “sesquipedalian.” Sesquipedalian is a modified English word of the Latin word “monstrum.” 

  1. Pseudopseudohypoparathyroidism

This word also consists of 30 letters. You can find this word in most dictionaries as it’s the longest word in the English language that is non-coined. This word is often used in its acronym format, “PHP.” It is a medical term that is associated with genetics. Pseudopseudohypoparathyroidism is an inherited condition where the individual gets a short stature along with a round face and short hand bones. In this disorder, the person’s joints and other soft tissues get hardened due to resisting certain hormones. 

  1. Floccinaucinihilipilification

It is a coined word with 29 letters. This word is a noun that is associated with something that is not important or worthless. In addition to that, this word is also regarded as the longest English language word that is non-technical.  


  1. Spectrophotofluorometrically

Where not most of the long words are often spoken over conversations, Spectrophotofluorometrically is abundantly used contemporary age. However, since this monstrous word contains 28 letters, you don’t want to say it or use it frequently in your daily life. Thus, it is used in its acronymic form, i.e., SPF. Its meaning is the relative intensities of light in the different parts of its spectrum.  

  1. Antidisestablishmentarianism

It is another long English word with 28 letters, and it’s a non-technical and non-coined word. This word is vastly associated with political philosophy as the opposite form of breaking away from an established church. In simple meaning, it refers to those people who opposed the idea of withdrawing support of the Anglican Church during the 1800s.  

  1. Psychoneuroendocrinological

The last word in the list is Psychoneuroendocrinological. This word was coined during the 1970s, which has 27 letters and is a technical term. Its meaning is associated with psychological factors where the nervous system and endocrine system play a vital role in determining human behaviour and health.  

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World records held by some long English words 

  • UNPROSPEROUSNESS-  The meaning of this word is “lack of prosperity .”This is one of the longest English words that has sixteen letters, where each letter occurs at least twice.  
  • HONORIFICABILITUDINITATIBUS- It is 27 letters consisting longest English word, where the consonants and vowels occur alternately. This word’s meaning is “a state in which it is possible to achieve the honour.” 
  • UNCOPYRIGHTABLE- It has the obvious meaning with the prefix “UN,” i.e., “something that can’t be protected by copyright.” It is one of the longest English words with fifteen letters, and each letter occurs only once. 
  • INCOMPREHENSIBILITIES-  It is one of the longest English words which has been in common usage in communications during the 1990s.  
  • STRENGTHS- It is the longest word that has only one vowel. It is the antonym of weakness.  
  • AEGILOPS- It is an eight-lettered word, which means “a genus of the grass family that occurs in Asia and Europe.” 
  • EUOUAE- It is a word that only consists of vowels. This six-letter word is a mnemonic sequence order of a specific fragment of Gloria Patri.  
  • SPOONFEED- It is a nine-letter word that appears in reverse alphabetical order. It means “getting fed with a spoon.” 
  • SCRATCHED and STRENGTHED-  These are two monosyllabic longest words with ten letters each. Scrunched meaning is the past form of “making a crushing noise,” and strength is derived from strength which is an archaic word. 
  • SET- Although “set” would not be considered as a long English word, it still has managed to bag a Guinness world record as the one English word with the most meaning, i.e., 430 meanings. The second edition of the Oxford English Dictionary has the longest entry with this word that covers about 20 pages. 

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Do you know what the very longest word in the English Language is? 

The longest work in English consist of 189.819 letters. This word is not used in communicative English but is a chemical name for Titin. Titin is a giant filamentous protein, which is critical for the structure development of the human body and keeping the elasticity of muscle. However, there are still many controversies over this word on whether it should be considered as an actual work or not. Here, take a peek at this long, dragged-out extensive English letter.

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If you are curious about how it sounds, just know that its pronunciation might take a few hours, which generally takes for a movie to finish. Search on YouTube, and you can find some 3 hours videos to know how it sounds. Although there are many long English words that are still not entered in many dictionaries, there we have the internet to solve such restrains to get information about such words. If you still struggle to form your understanding of the word concepts, you can reach out to, where their experts are able to give you comprehensive knowledge of the English language and literature. 

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