Illegible, unreadable. Also figurative.

Of handwriting: messy, illegible. In later use often with the specific implication of being typical of a draft version (cf. sense 10b).

Of a message, letter, etc.: quickly or carelessly composed; written in an irregular or untidy hand. Also of handwriting: irregular or untidy.

Of handwriting: irregular or untidy, esp. as a result of haste or carelessness. Also occasionally of a piece of writing: quickly or carelessly…

Of handwriting: Difficult to decipher from the bad formation of the characters.

Difficult to decipher or make sense of; cf. hieroglyphic, adj. 4.

Inscribed with scrawling characters, written in a scrawling style.

Not legible, that cannot be read; esp. of written characters: Undecipherable.

Of handwriting, a typeface, etc.: illegible through ill-formed or indistinct characters.

Characterized by scribbling; esp. (of a text) quickly or carelessly composed; (of handwriting) irregular, untidy; (of a drawing) having lines or…

attributive. With reference to handwriting (see sense 2).

That scrawls. Of handwriting: Careless, untidy, illegible.

That cannot be deciphered or made out; indecipherable. Of writings, inscriptions, etc.

Of or relating to scribbling; relating to the production of carelessly composed or worthless writing. Cf. scribble, v.1 2.

Badly or untidily written; irregularly designed.

Lean, scraggy.

Scribbled, badly written. Also transferred and figurative.

humorously. Difficult to decipher.

(of writing) characterized by pot-hooks, scrawly.

Of writing, a line, a text, etc.: scribbly, scrawly.

Designating or characterized by unintelligible, illegible, or roughly-drawn marks, lines, symbols, or letters, typically made by hand. Cf. scratch…