The phrase "blows skyhigh" refers to a situation where something is destroyed or fails catastrophically. Its antonyms would be words or phrases that indicate success, achievement, or stability. Some possible antonyms include "thrives," "flourishes," "succeeds," "survives," "prevails," and "endures." These words suggest a positive outcome and a sense of perseverance despite challenges. In contrast, "blows skyhigh" suggests something has been reduced to rubble, indicating a disastrous and irreversible loss. Therefore, using antonyms of "blows skyhigh" can create a more positive, hopeful tone in a given context, emphasizing the possibility of success and growth.