1. the quality or state of being crumbly; tendency to break apart into small pieces or crumbs

Examples

• The crumbliness of the old cookie made it fall apart in my hand.
• The soil's crumbliness made it easy to work with in the garden.
• The baker complained about the crumbliness of the cake batter.
• Years of weathering increased the crumbliness of the stone wall.
• The crumbliness of the dried bread meant it was no longer fresh.
• We appreciated the crumbliness of the shortbread texture.