illegibly
/ˌɪlɪˈdʒɪbli/ i-lĭ-JIB-lee
Definitions
1. adverb
in a way that is difficult or impossible to read or understand
“The doctor read the patient’s chart illegibly, forcing her to ask him to repeat the diagnosis.”
2. adverb
in a manner that is unclear or hard to decipher
“The graffiti artist wrote his message illegibly on the wall to avoid detection.”