"More spurtive" refers to something that is characterized by sudden and unpredictable bursts of activity or movement. The antonyms for this term are words that describe the opposite of such behavior, such as steady, consistent, predictable, and regular. These words suggest a sense of stability, muted energy, and a lack of sudden and uncontrolled movements. Examples of antonyms for "more spurtive" include words like constant, continuous, even, stable, uniform, and regular. While spurtive behavior may be exciting and unpredictable, sometimes it is desirable to have a more even and predictable pace.