Superlative form of steady: most steady.(adjective)
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Use "steadiest" in a sentence
"But the steadiest and largest pool of consumers was prostitutes, who by the 1870s made up an estimated 5 percent to 10 percent of women in American cities, or several million purchasers of birth control."
"To be deprived of it, even for a brief time, could frighten the steadiest hand."
"The steadiest rain probably falls south of Fredericksburg, with rain diminishing in coverage and intensity to the north."