steely /ˈstiːli/adjective 2forms 2phrases 3 adjective2 •Having qualities resembling those of steel, especially hardness and resoluteness.The bully backed down before his steely gaze. •Made of steel.Broach'd with the steely point of Clifford's lance. — 1591 formssteelier · steeliest Phrases with steely steely-eyedHaving a hard, strong, and determined look about oneself. steely-nervedHaving a hard, strong, and determined mindset, with very steady nerves; great patience and courage. steely-spinedHaving a hard, strong, and determined mindset / mentality.