The word "vagarious" refers to something that is unpredictable or erratic in behavior. So, the antonyms for "more vagarious" would be anything that suggests consistent or stable behavior. Some antonyms that come to mind include "predictable," "steady," "calm," "even-tempered," "consistent," "regular," "balanced," "steady," and "uniform." These words imply orderliness, steadiness, and consistency, which is the complete opposite of being "vagarious." When we use antonyms, we can create a contrast between two concepts, giving an idea of how different they can be. By using antonyms for "more vagarious," we are highlighting the importance of having stable and predictable behavior, which is crucial for many aspects of life.