Sentence examples similar to a steadle decline from inspiring English sources

The phrase "a steadle decline" is not correct in English.
Did you mean "a steady decline"? You can use "a steady decline" to describe a consistent and gradual decrease in something, such as sales, performance, or interest over time.
Example: "The company has experienced a steady decline in profits over the last three quarters."
Alternatives: "a gradual decrease" or "a consistent drop".