The phrase "makes the grade" is commonly used to describe someone or something that meets a particular standard or expectation. However, there are many antonyms for this phrase that indicate failure to meet these standards. Some of these antonyms include "falls short," "misses the mark," "doesn't measure up," and "fails to make the cut." These words all suggest that the individual or object in question does not meet the required expectations or criteria, and may not be considered successful or adequate. By understanding these antonyms, we can better appreciate the importance of working hard, persevering, and striving to meet the goals and standards we set for ourselves.