Multiple choice general knowledge Longest word in English Floccinaucinihilipilification Hippopotamus Environment Antidisestablishme Reveal answer Fill a bubble to check yourself A Correct answer Explanation Floccinaucinihilipilification is indeed recognized as one of the longest words in the English language, containing 29 letters. It refers to the act of estimating something as worthless. The other options are significantly shorter words.