Dictionary.com

sesquipedalian

[ ses-kwi-pi-dey-lee-uhn, -deyl-yuhn ]
/ ˌsɛs kwɪ pɪˈdeɪ li ən, -ˈdeɪl yən /
Save This Word!

adjective Also ses·quip·e·dal [ses-kwip-i-dl]. /sɛsˈkwɪp ɪ dl/.

given to using long words.
(of a word) containing many syllables.

noun

a sesquipedalian word.

VIDEO FOR SESQUIPEDALIAN

WATCH NOW: These Long Words Are Nearly Impossible To Pronounce

Dictionary.com presents another episode in our "Words That Are Really Hard to Pronounce!" series! It's time for the long words. Can you pronounce them correctly?

MORE VIDEOS FROM DICTIONARY.COM

QUIZZES

QUIZ YOURSELF ON "WAS" VS. "WERE"!

Were you ready for a quiz on this topic? Well, here it is! See how well you can differentiate between the uses of "was" vs. "were" in this quiz.
Question 1 of 7
“Was” is used for the indicative past tense of “to be,” and “were” is only used for the subjunctive past tense.

Meet Grammar Coach

Write or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing

Meet Grammar Coach

Improve Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help

Origin of sesquipedalian

First recorded in 1650–60; from Latin sesquipedālis “measuring a foot and a half ”(see sesqui-, pedal) + -ian

OTHER WORDS FROM sesquipedalian

ses·qui·pe·dal·i·ty [ses-kwi-pi-dal-i-tee], /ˌsɛs kwɪ pɪˈdæl ɪ ti/, ses·qui·pe·da·li·an·ism, ses·quip·e·dal·ism [ses-kwip-i-dl-iz-uhm, ‐kwi-peed-l-iz-uhm], /sɛsˈkwɪp ɪ dlˌɪz əm, ‐kwɪˈpid lˌɪz əm/, nounun·ses·qui·pe·da·li·an, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for sesquipedalian

British Dictionary definitions for sesquipedalian

sesquipedalian

less commonly sesquipedal (sɛsˈkwɪpədəl)

/ (ˌsɛskwɪpɪˈdeɪlɪən) /

adjective

tending to use very long words
(of words or expressions) long and ponderous; polysyllabic

noun

a polysyllabic word

Derived forms of sesquipedalian

sesquipedalianism, noun

Word Origin for sesquipedalian

C17: from Latin sēsquipedālis of a foot and a half (coined by Horace in Ars Poetica), from sesqui- + pedālis of the foot, from pēs foot
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
FEEDBACK