You searched for: “steely
steely, stele
steely (STEE lee) (adjective)
1. Resembling steel, as in color or hardness: "His eyes were a steely blue suggesting a personality of determination and drive."
2. Being very strong and determined often in a cold or unfriendly way: "She gave him a steely look when he tried to talk to her."

"He had a steely determination to succeed."

stele (STEE lee) (noun)
An upright stone or slab with an inscribed or sculptured surface, used as a monument or as a commemorative tablet in the face of a building: "The builders included a stele on the front of the building near the main entrance."

The ancient stele that was erected in the farmer's field often tripped visitors prompting steely looks from them.