The word "shake-ups" refers to significant changes or disruptions. The antonyms of this word would be stability, steadiness, and consistency. Stability refers to a state of being firmly established, and unchanging. Similarly, steadiness implies a level of constancy or reliability, whereas consistency points to regularity and uniformity. Antonyms of shake-ups can be associated with a sense of calm, predictability, and orderliness. While a shake-up can be necessary at times, stability and consistency are highly desirable for many aspects of life, such as financial stability, job security, or consistent relationships. Therefore, they provide a foundation for long-term stability and success.