The concept of "antonyms" refers to words that have opposite meanings. In the case of "art invented," some antonyms might include "nature discovered," "spontaneous expression," or "organic creation." These alternatives suggest a contrast to the deliberate and intentional act of invention, instead emphasizing the exploration of the natural world or the boundless creativity that arises from within. Other antonyms might include "formlessness," "chaos," or "accidental beauty," which contrast with the ordered, purposeful creation that "art invented" connotes. Ultimately, the choice of antonyms depends on the specific connotations and associations one wishes to convey in relation to the phrase "art invented.