"Hath one number" refers to the state of having a single numerical value. Antonyms for this phrase include "various numbers," "multiple values," and "numerous digits." These antonyms imply a condition where there are many numerical values or variables to consider, rather than just one. In certain contexts, the antonyms for "hath one number" might also involve terms like "ambiguous," "unclear," or "imprecise," as any situation with multiple numbers or variables can sometimes lead to confusion or lack of clarity. However, in many cases, having multiple numbers can also provide valuable information or insights, leading to greater understanding and accuracy in calculations or analyses.