Definify.com

Webster 1913 Edition

‖

Noun.

[Gr.

ἀ

priv. + [GREEK] to write.]

The absence or loss of the power of expressing ideas by written signs. It is one form of aphasia.

agraphia ‎(uncountable)

(pathology) A loss of the ability to write (usually referring to a brain injury)
The inability to write

loss of writing ability

inability to write

(due to lack of education)