Dictionary.com
Thesaurus.com
Synonyms

steely

American  
[stee-lee] / ˈsti li /

adjective

steelier, steeliest
  1. consisting or made of steel.

  2. resembling or suggesting steel, as in color, strength, or hardness.


Other Word Forms

Etymology

Origin of steely

First recorded in 1500–10; steel + -y 1

Explanation

Anything that's steely resembles the metal called steel in some way—it's either hard, strong, bright, or silvery. A sword, a shade of gray, and even a look can be steely. You might describe the steely glint of the polished silverware on the table, or the steely blue of your cat's eyes. If someone questions you with a steely coldness, they are hard and emotionless—as cold as steel. You could also describe this person as "flinty" or "stony," other unbending adjectives. When steely was first used in the 16th century, it also described things literally "made of steel."

Keep Reading on Vocabulary.com

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Like so many other TV personalities in 2026, she cannot move her forehead, giving her already steely vibe the facial permanence of a screengrab.

From Slate • May 6, 2026

They operate in gleaming offices and impenetrable hotels in a strikingly steely Los Angeles.

From The Wall Street Journal • Apr. 15, 2026

Washington, he says, has failed to take account of Iran's steely determination.

From BBC • Apr. 13, 2026

But the majority of her roles have highlighted a steely resolve that is all Madigan.

From Barron's • Mar. 15, 2026

I don’t know if his eyes are steely and upset, or if they’re warm and inviting.

From "The Wrong Way Home" by Kate O’Shaughnessy