1) Blue-gray 2) Coldly determined 3) Consisting or made of steel 4) Coolly determined 5) Extremely hard 6) Flinty-eyed 7) Hard 8) Hard and cold 9) Hard and glittering 10) Hard and keen 11) Hard and tough 12) Hard as nails 13) Hard cold or grey 14) Hard like metal 15) Hard, firm or cold 16) Inflexible 1) Pitiless 2) Rigid 
• (a.) Resembling steel; hard; firm; having the color of steel. • (a.) Made of steel; consisting of steel.
1. Made of steel; consisting of steel. 'The steely point of Clifford's lance.' 'Around his shop the steely sparkles flew.' (Gay) ... 2. Resembling steel; hard; firm; having the colour of steel. 'His hair was steely gray.' 'She would unarm her noble heart of that steely resistance against the sweet blows of love.' (Sir P. Sidney) Steely iron, a comp...
Steel'y adjective 1. Made of steel; consisting of steel. 'The steely point of Clifford's lance.' Shak. « Around his shop the steely sparkles flew.» Gay. 2. Resembling steel; hard; firm; having the color of steel. 'His hair was steely ...
Firmly structured; taut balance tending toward high acidity. 
[adj] - resembling steel as in hardness 2. [adj] - resembling steel in hardness
A term used to describe an extremely crisp, acidic wine that was not aged in barrels.
adjective resembling steel as in hardness; `steely eyes`; `steely nerves like those of a steeplejack`
Bracing, with intense mineral character. Usually a white-wine characteristic.
consisting or made of steel. · resembling or suggesting steel, as in color, strength, or hardness.