The longest word is a chemical name, the 189,819 letter technical term for the protein "titin" (it will not display here - see the related link).
Other long words in English are
-- "pneumonoultramicroscopic-silicovolcanoconiosis"
(no hyphen), a 45-letter coined term for volcanic dust silicosis of the lungs
-- "floccinaucinihilipilification"
(no hyphen) a 29-letter word coined at Eton to suggest regarding something as worthless or insignificant
-- "antidisestablishmentarianism"
the opposition to disestablishing a church as an official religion.
(commonly regarded as the longest actual word in English dictionaries)
There are also very long words possible in Finnish, Hungarian, and Greek.
(see the related question below)
1909
1,909 letters in the longest word
Antidisestablishmentarianism is the longest non-technical word with 28 letters
Methionylthreonylthreonylglutaminylalanyl...isoleucine. It has 189819 letters and the longest word in the world.
1909
One can find the longest word in the dictionary, to be more specific, the Merriam-Webster online, the word has letters but still not the longest word in the world.
With 189,819 letters, the chemical name for tin is the longest word in English. Using a word calculator reveals this word processes 14,260 syllables.
Aegilops is the longest word whose letters are in alphabetical order.
There is no English word that uses all 7 of these letters. The longest word using these letters in unreel. The longest word using the j is jurel.
see this link to see the longest word in the world. https://www.digitalspy.com/fun/a444700/longest-word-has-189819-letters-takes-three-hours-to-pronounce/ 'Methionylthreonylthreonylglutaminylarginyl...isoleucine' is the chemical name of 'titin' (also known as 'connectin') - the largest known protein. It has 189,819 letters.
It takes three hours to say and is a chemical name for titin. The word is almost 190,000 letters! You might spend an eigth of your day saying this.
The longest word that can be made up from the letters "qwertyuiop" is the following:Typewriter