Steely | Mean of steely in English Dictionary

/ˈstiːli/

• very strong and determined often in a cold or unfriendly way
1. a thief with steely nerves
2. He had a steely determination to succeed.
3. She gave him a steely gaze.
• resembling steel especially in color
1. a sky filled with steely gray clouds
2. the judge's steely blue eyes