Definition of "surefooted"

The mules of Piedmont are exceeding strong and hardy. […] They are the only carriage that can be used in crossing the mountains, being very sure-footed: and it is observed that in choosing their steps, they always march upon the brink of the precipice.

1766, Tobias Smollett, Travels through France and Italy‎, Letter XX

For many years I didn't learn to walk, because I was carried everywhere—not by my parents, who had grown frail, but by the most sure-footed of the servants.

1997, Emma Donoghue, “The Tale of the Needle”, in Kissing the Witch: Old Tales in New Skins, New York: HarperCollins, page 169

Her performance was described as "stunning, surefooted, breathtaking."

2015, Rosemary Sullivan, Stalin's Daughter, page 320