The antonym for "art running" would be "carelessness" or "lack of skill". While "art running" suggests a graceful and skilled movement, the opposite would be a clumsy and haphazard one. Antonyms such as "ineptitude" or "awkwardness" could also be used to describe the opposite of "art running". Similarly, the antonym could be "stillness" or "immobility", where there is no movement at all. The contrast between the two opposites highlights the importance of precise and skilled movement, as opposed to chaotic and clumsy actions. Ultimately, the antonym for "art running" emphasizes the need for control, precision, and finesse in one's actions.