More set-up can mean the arrangement of more equipment or the provision of additional resources. The antonyms for this term would, therefore, relate to the absence or reduction of these elements. Words such as "dismantled" or "discontinued" could be used, indicating the removal of set-up resources or equipment. "Reduced" could also be used if some of the set-up resources were taken away or the number of resources was decreased. Other possible antonyms for "more set-up" may include terms such as "minimalistic," "low-key," or "basic," which suggest simplicity rather than complexity. Ultimately, the antonyms used would depend on the context of the phrase and the intended meaning.