scribbled
scrib-bled
adjective
Covered with careless, illegible writing or marks.
"The scribbled message was hard to decipher."
verb
Wrote (something) quickly and carelessly; made meaningless marks.
"He scribbled a note and left it on the table."
Thesaurus
Synonyms: scribble, scrawl, doodle, scrabble, scratch, cacography