Antonyms for the phrase "impacting on" can vary depending on the context. Some possible antonyms include "ignoring," "avoiding," "neglecting," "disregarding," and "overlooking." These words suggest a lack of influence or effect on a particular situation, person, or group. For instance, a company that ignores customer feedback is not "impacting on" its customers, whereas a company that carefully considers and responds to customer feedback is "impacting on" them positively. Conversely, a decision to neglect or disregard certain factors may negatively "impact on" the outcome. By understanding the potential antonyms for "impacting on," one can convey a more nuanced and precise message.