'Hippopotomonstrosesquippedaliophobia' is one of the longest words in the dictionary — and, in an ironic twist, is the name for a fear of long words. Sesquipedalophobia is another term for the phobia.31_May_Trivia_Jaano_Junction-2.png.Stay connected to Jaano Junction on Instagram, Facebook, YouTube, Twitter and Koo. Listen to our Podcast on Spotify or Apple Podcasts.