Illegibly
The Century Dictionary and Cyclopedia
In an illegible manner: as, a letter written
illegibly.
Wiktionary, Creative Commons Attribution/Share-Alike License
adverb.
In a manner that produces
illegible
results.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adverb.
in an illegible manner
Word Usage
"It's one thing to rip the poor guy's beak off, but then to sign your name illegibly in its place?"