ironhearted

From the foregoing, and also from III.xxviii. it follows that everyone endeavours, as far as possible, to cause others to love what he himself loves, and to hate what he himself hates: as the poet says: “As lovers let us share every hope and every fear: ironhearted were he who should love what the other leaves.”

The Ethics 2007

She couldn't have ever loved, no, not her, the ironhearted, the steel-spined ... never could her eyes have been soft.

Flowers In The Attic Andrews, V. C. 1979

England's fierce wars for civil liberty laid her and her unfortunate assistant prostrate beneath the feet of an ironhearted usurper and despot.

Sketches of North Carolina, Historical and Biographical, Illustrative of the Principles of a Portion of Her Early Settlers 1846

The ironhearted statesman submitted his plan, probably with much management and with some disguise, to Lewis; and Lewis, in an evil hour for his fame, assented.

The History of England, from the Accession of James II — Volume 3 Thomas Babington Macaulay Macaulay 1829