"the Voynich manuscript's "language" is quite unlike European languages in several aspects. Firstly, there are practically no words comprising more than ten glyphs, yet there are also few one- or two-letter words. The distribution of letters within words is also rather peculiar: some characters only occur at the beginning of a word, some only at the end, and some always in the middle section."
The link pvg pasted mentions other difficulties.
If you're intending to be obfuscatory, you might come up with "aberrant statistical properties".