The soil should crumble easily during digging and firm enough to resist collapse.
But it did work, and the cliff crumbled easily under Oliver's weight.
It was gray and crumbled easily in his hand.
He also knows that the Patriots will not easily crumble.
The stones were solid, but between them was old mortar, which crumbled easily.
He took an axe to it, and it crumbled easily.
Avoid foods such as crackers or cakes that crumble easily.
That process is far from completed, and the agreement could easily crumble.
Defenses crumbled easily at three o'clock in the morning.
Don't go too near the edge between the fifth and sixth Sister, for the chalk crumbles easily.