Pronunciation: (un-rē'du-bul), [key]
1. not readable; undecipherable; scribbled: His scrawl was almost unreadable.
2. not interesting to read; dull; tedious; an unreadable treatise.
3. extraordinarily difficult to read or comprehend; obscure; incomprehensible: an unreadable dream; an unreadable expression.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.