ferreous

"Or else the ferreous mineral content in the cave is so high that the needle can't get a fix on the North Magnetic Pole."

A thesis that continues to be debated among academics and intellectuals who see in Betancourt not an isolationist but a courageous defender of democratic principles in the midst of adversity and ferreous enemies.

A face that was the ferreous incarnation of all imaginations of malice and irony looked on me with a glare, withering from its intense heat, but still more from the unconceived degree of inner wickedness which it symbolized.