What term describes something that is steady and regular?

The term "consistent" accurately describes something that is steady and regular. In this context, "consistent" indicates reliability and predictability, suggesting that the subject in question behaves in a uniform manner over time without fluctuations or variations. For example, in a clinical setting, a consistent heart rate would imply that the heart's rhythm is stable, which is generally seen as a positive health indicator.

The other terms imply variability or instability. "Inconsistent" suggests a lack of regularity, where the performance or occurrence varies from one instance to another. "Erratic" refers to unpredictability and a tendency to change suddenly and without apparent reason, which is opposite to being steady and regular. "Unsteady," likewise, denotes a lack of stability, suggesting fluctuations that make something unreliable or irregular. Therefore, "consistent" stands out as the term that encapsulates the essence of being steady and regular.