What's the longest English word you know?

[Jbgurl20]

So what's the longest English word you know? ... Lol the detail is too short that's why I'm writing this.

[ChronicBoys26]

Afyonkarahisarlastiramadiklarimizdanmisiniz?

Aren't you one of those people whom we tried unsuccessfully to make resemble the citizens of Afyonkarahisar?

Hahahahahahahaha :D

[Belgie]

Pneumonoultramicroscopicsilicovolcanoconiosis.

[Jbgurl20]

^_^...

[dodgypirate]

Methionylthreonylthreonylglutaminylarginyl... isoleucine (189,819 letters), the chemical name of titin.

Bad ass mutherfoker over here!

[Jbgurl20]

lol Soooo long

[26ukdude]

Yeh you win, by miles, I didn't even realise it existed until I saw your answer, I used to think it was Antidisestablishmentarianism. Oops!

[dodgypirate]

Anyone want to tell me how long it takes them to read it? I can't be bothered :P

[Jbgurl20]

3 hours

[dodgypirate]

An intelligent guess :)

[kheserthorpe]

Antidisestablishmentarianism. I'm aware its not the longest, but I can't remember the longer ones.

[bunnahies]

hippopotomonstrosesquipedaliophobia
lawl

[Jbgurl20]

Is it the fear of long words?

[bunnahies]

mhmmmmmm

[harakiri]

supercalafragalisticexpialidocious!

[maiez]

My disease: Hypogammaglobulinemia.

[takana]

pie

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[tokioangel95]

Phenolphthalein