tsuwm has suggested that my question about the qualifications necessary to grace a collection of phonemes with the honor of being a word deserved its own thread. I agree.

Dub-dub' suggests, for starters, that "eoxlibnsdaienvlab" is not a word. We can certainly agree that it contains consonant clusters that are not found in any other English word. And, for purposes of discussion, we may as well limit ourselves to English words, so it seems like a reasonable thing to say that "eoxlibnsdaienvlab" is not a word. "Inciteful" on the other hand, is not only made up of quite pronounceable consonant clusters, but it is composed of nothing but perfectly legal morphemes. Note that I am not trying to claim word status for "inciteful", just wondering what it takes to be a word. And noting that "inciteful" is a common misspelling of "insightful" does not mean that it couldn't means something else.