Justificationability preponderanced nevertheless, postrationed forwards, the longest word in the english language... Pneumonoultramicroscopicsilicovolcanoconiosis.
Even more hilariously, there are two other words that are so long and rediculous, that they are disputed to even be words. It comes as a prerequisite for mockitects to challenge these boundaries. [more]
Or, if you prefer your word choice scripted, try this. (via AMNP)