Douglas Harper's Etymology Dictionary
Wiktionary
a. not bleached
WordNet
Usage examples of "unbleached".
Walking toward Milo, smiling, the monk strode with a pantherish grace, and Milo thought that the man had probably been a deadly swordsman in his salad days, no doubt still could be had he not traded his armor for a robe of unbleached wool and his sword for his faith.
All of them wore the standard short tunic and baggy pants of unbleached cloth, the garb of unassigned slaves, the same clothing Serina had worn until she was taken to be trained at age ten.
A sturdily built woman in a decent brown broadcloth dress over neat, unbleached linen was hauling water from a well and looked at us with a challenge in her eyes when we stopped.
That was currently hooked in the belt of his undress uniform, a gray kimonolike tunic with an undershirt of unbleached cosilk, a heavy cosilk scarf wrapped around his neck and tucked into the tunic, blue pants with a light blue seam down the trouser-leg and heavy, rough-leather boots.