The term "numero uno" is commonly used to refer to a person or thing that is considered to be the best or most important in a particular context. However, there are various antonyms for this term that describe the opposite of being top-ranked or highly regarded. Some of these antonyms include "inferior," "bottom of the heap," "lowly," "underdog," "second-rate," "insignificant," "unimportant," and "unremarkable." These words suggest a lack of prominence, value, or excellence. While it is common to strive to be numero uno, it is important to recognize that success and worth can also be found in qualities beyond just superiority.