The phrase "a steady character" is correct and usable in written English.
It can be used to describe someone who is reliable, consistent, and stable in their behavior or personality.
Example: "In times of crisis, it's important to have a steady character to guide the team through challenges."
Alternatives: "a stable personality" or "a reliable disposition."
On the prison landings where he and I met in another life, Felix the Gambler (not his real name, you understand) was a steady character; reliable and independent of thought, if a little over-philosophical sometimes, especially towards the end of his couple of dozen years inside.
If it's a steady character in that particular artist's portfolio, be sure to collect as many as you can use.
"They think Bush has a strong, steady character.
When they capture a lone Indian (Ron Rondeaux, Meekk wants to kill him, but Emily Michelle Williamss), one of the wives — a woman of strong, steady character — raises a rifle and faces Meek down, protecting the captive, who just might lead them out of the desert to a river or a lake.
Shortly after the election, Jefferson, in a letter titled "Reconciliation and Reform," wrote this: "The steady character of our countrymen is a rock to which we may safely moor.
For Mr. Glasberg there is a lesson embedded in "NCIS" about slow, steady character building.
In "Death and the Maiden," his Death was a steady, smooth character, all the more imposing for being so unassuming.
He had just been seen on one knee, with his hand on his helmet, a vision of disbelief after he strayed from his steady character by fumbling on the Cowboys' 11-yard line.
Two hundred years have only strengthened the steady character of America.
Hassen's edgy, subtle, muted drawings illustrate this story marvellously (three-year-olds of steady character and up).
Instead of a steady narrative, characters and their milieus are conjured in quick, sepia-tinted tableaus.
