The Most Complex Word in the English Language

It isn't sesquipedalianism, it isn't pneumonoultramicroscopicsilicovolcanoconiosis, and it definitely isn't supercalifragilisticexpialidocious. So, what is the most complex word in the English language?

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[ApertureThinking]

Sometimes, the simple things can be the most complex.

[psdjrxx]

No one:
Aperture: flexing his vocabulary for 14 minutes straight

[JeremyFtzgerald]

Me when writing my 5000 letter essay: *hmm yes, i have sesquipedalianism*

[keeganmet]

Aperture really do be flexing his pronunciation skills tho

[sierradetwiler]

pretty sure the word with the most definitions is "fine"
"I'm fine" can mean literally anything

[jt_chris]

When u realize the whole video is him just flexing his vocabulary skills

[troy]

“Length isn't everything.”

Me: Finally... Hope!

[sessierandrew]

It might be that, but everyone knows its Worcestershire Sauce

[agentofchaos]

Set is a runner up while Run has set the unofficial record.

[rbxq]

Fun fact: is the fear of long words.

edit: can you guys stop sending me notifications of the same fun facts over and over

[macayleangelina]

“How often does your computer crash?”
“Rarely.”
“It happens often.”
“ “

[jaxsimmons]

“Length isn’t everything.”
-Aperture

[rubix]

All I learned: Aperture can say hard words really easily

[thesun]

I’m convinced this man has the answers to all the secrets in the universe

[Angiepookiebear]

"What is the most complex word in the English language?"

*Everything.*

[unsupervised_orphan]

the word "set" doesn't sound like an actual word anymore

[indicicive]

Aperture should be an English teacher, and point out every small inconsistency in our language

[niasaraeeee]

*Aperture casually flexing he knows how to say long words for 14 minutes straight*

[Giantalfe]

"The Most Complex Three-Letter Word in the English Language"
My brain for no reason: SUS

[zurid]

"Omg, your drawing is so
"Are you okay, I heard you got
"Stop
"Wow, you do a lot of sesquipedalianism"

Edit: I’ve never even heard of those words so I might not be using the word in wrong format of sentence.