Rule reminder
Suffixes signal word class and meaning: -abile/-ibile → adjective (can be done), -oso → adjective (full of), -mente → adverb, -ista/-aio → profession noun, -one/-ino/-etto → altered noun (size/tone). Apply these patterns to unfamiliar vocabulary.
You don't know 'scrivibile'. You know scrivere = to write and -ibile means 'able to be'. What does it mean?