* Incomprehensibilities: This word is the longest word in the English language with 10 syllables. It means "the quality of being impossible to understand."
* Antidisestablishmentarianism: This word has 10 syllables and refers to opposition to the separation of church and state.
* Floccinaucinihilipilification: This word has 10 syllables and is a rare word meaning "the act of estimating something as worthless."
* Pseudopseudohypoparathyroidism: This word has 10 syllables and refers to a rare genetic disorder that affects calcium metabolism.
It's important to note that these words are very uncommon and are rarely used in everyday speech.