What's the longest word you can spell off the top of your head?

[Synaesthesia]

It's really not that hard to spell antidisestablishmentarianism off the top of your head. There are no silent consonants or weird vowels. If anything, antidisestablishmentarianism is easy to spell, especially when you have it right there in front of you. Spell it out verbally, then we'll talk.

Anyway, Supercalafragilisticexpialidocious is probably the longest word I know to spell, or antidisestablishmentarianism.

 

[.Gamer]

The only thing on top of my head is hair, so I guess thats the longest word.

=P