An extraordinarily large word. A word that only the pedantic use.
by John Paxton March 21, 2005
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A long word.

1. Given to the use of long words.
2. Long and ponderous; polysyllabic.
A sesquipedalian is Throwing long word in a sentence that is un-needed:
Gregory found traffic court a Kafkaesque experience
by Chiliad May 16, 2006
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A big ass word that can be used to describe someone that uses big ass words
by Asdfghjkl69420 December 19, 2019
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A lover of words; particularly long words. These people don't merely love these words, they lust these words, they fantasize about them, they fucking ADORE THEM!

The lives of Sesquipedalians are words, they live, breathe and eat words. Literally. Extreme Sesquipedalianism (or ES) is a condition whereby a patient reports excessive masturbation and intrusive sexual thoughts about words. Treatment is sparse.
Nick: Hey, I redecorated the bedroom with Predominantly last night.

Warren: You're such a sesquipedalian! I love Paradoxically so much I think i could cry.
by WizWaz91 February 24, 2011
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Sesquipedalian (adj.)

(Of a word) Containing many syllables.

(Of a person) Having an advanced vocabulary.

Loquaciousness (adj.)

(Of a person) Having a tendency to talk a lot; garrulous.

(Of a sentence) Using far more words than necessary; verbose.

Therefore, "Sesquipedalian Loquaciousness" refers to the tendency of a (usually) highly intelligent person to use extremely large words in mass quantities in order to sound more intelligent. Commonly found in chemistry and other ambitious majors.
Done right, it makes the person sound like someone who oughta be respected and paid attention to, because they definitely know what they're talking about.

Done wrong, it makes the person sound condescending and/or pretentious.
I started playing Words With Friends with Stephen. Terrible mistake. I should have known his sesquipedalian loquaciousness would give him the advantage. He wipes the floor with me every time!
by Someone who kinda exists April 25, 2022
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adj. Characterized by long words; long-winded
As someone who is quite Sesquipedalian, I make it my mission to use loads of long words in all my conversations.
by An amazing, beautiful, March 19, 2019
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meaning something that is very long- usually for syllabic words
Don't use very sesquipedalian words in your passage, keep it short, finite and easily understandable.
by sasba May 27, 2022
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