Antonyms for the phrase "makes easier" indicate actions that may impede progress, cause obstacles, or make tasks more difficult. Some examples include "complicates," "thwarts," "hamstrings," "hinders," and "obstructs." Each of these words suggests a different level of resistance, suggesting that some tasks may simply be more challenging than others. However, it is important to remember that these words are not inherently negative. In some cases, they may be used to describe actions that are necessary for success or to provide context for achievements. The key is to understand the appropriate context in which they may be used.