nejnezdevětadevadesáteronásobitelnějšími know of a longer one? How about the longest in English......anyone? :}
It might be the longest one but it is not - it is just a combination of prefixes and suffixes in effort to create the longest word, but it lacks sense. Here is one of really long words in Czech: nejnezpravděpodobnostňovávatelnější(-ho or -mi or mu) and another one: nejnedoobhospodařovávatelnější ](-ho or -mi or mu)
The longest I've heard of is antidisestablishmentarianism. Just for kicks, I looked this up in Wikipedia: http://en.wikipedia.org/wiki/Longest_word_in_the_English_language. Apparently there is some debate on the issue.
....well, I though the longest word in English was: smiles. (....there is a mile between the 2 s's !!) Sorry for the pun/joke, ...could not resist !! :lol: