(archaic, poetic) unwritten

To erase; to revert to a state where (something) was never written. / To nullify. / To deconstruct. / (computer engineering) To revert to a known state in so that new data can be written.

Not writable.

Third-person singular simple present indicative form of unwrite

present participle of unwrite

Not writing.

Alternative form of unwritable

Not written. / Oral or otherwise communicated without writing. / Implicit or understood but not formally articulated. / Containing no writing; blank.

past participle of unwrite

An unspoken rule.