Definitions for sackclothed
Random House Webster's College Dictionary
a coarse cloth of various fibers, as goat hair, cotton, or linen. this cloth or a garment made from it worn to show repentance or grief.
Idioms for sackcloth:
in sackcloth and ashes,in a state of repentance or sorrow; contrite.
Origin of sackcloth:
Dressed in sackcloth.
clothed in sackcloth