The term "comes up scratch" means that something is found to be insufficient or inadequate. It is often used to describe a situation or an individual's performance. Synonyms for this expression include "falls short," "lacks," "fails to meet expectations," "doesn't cut it," and "falls behind." These phrases are commonly used to indicate that something or someone did not meet the required standard or failed to deliver the promised results. It is essential to use such synonyms in professional and personal contexts to convey constructive criticism and feedback with tact and diplomacy.