Whence that unnatural line of drones, who heap Toil and unvanquishable penury 120 On those who build their palaces, and bring Their daily bread?
"The Complete Poetical Works of Percy Bysshe Shelley Volume III"
Percy Bysshe Shelley Edited by Thomas Hutchinson, M. A.
"We know, O unvanquishable," said the three Hens.
"The Boy Who Knew What The Birds Said"
Padraic Colum
The Fortress unvanquishable, Save For Sacnoth In a wood older than record, a foster brother of the hills, stood the village of Allathurion; and there was peace between the people of that village and all the folk who walked in the dark ways of the wood, whether they were human or of the tribes of the beasts or of the race of the fairies and the elves and the little sacred spirits of trees and streams.
"The Sword of Welleran and Other Stories"
Lord Dunsany