methionylthreonylthreonylisoleucine
Honorificabilitudinitatibus
Antidisestablishmentarianism
Pseudopseudohypoparathyroidism
Supercalifragilisticexpialidocious
Pneumonoultramicroscopicsilicovolcanoconiosis
Lopadotemachoselachogaleokranioleipsanodrimhypotrimmatosilphiokarabomelitokatakechymenokichlepikossyphophattoperisteralektryonoptekephalliokigklopeleiolagoiosiraiobaphetraganopterygon
and the last two are too long to put in here