There are several synonyms for the phrase "technology cancellation." One such synonym is "technological discontinuation," which refers to the act of discontinuing or halting the use of a particular technology. Another synonym is "technology termination," which emphasizes the idea of ending a technology or ceasing to use it. "Tech abandonment" is another synonym that highlights the act of abandoning or giving up on a technology. Lastly, "technological obsolescence" is a synonym that describes the process of a technology becoming obsolete or outdated due to new advancements or innovations. All of these synonymous phrases share the common theme of technology no longer being utilized in one way or another.