The phrase "blew sky high" implies destruction or explosion. Antonyms of this phrase could include words like "safely intact," "unscathed," or "securely in place." These words convey the idea of preservation and protection. Other antonyms could be "peaceful," "calm," or "controlled." These words suggest a sense of stability and order, which is the opposite of the chaos and destruction implied by the original phrase. Overall, the antonyms of "blew sky high" help to emphasize the importance of safety, stability, and security in our lives.