The antonyms for the word "noblenesses" are words that convey the opposite meaning of nobility, such as rudeness, vulgarity, coarseness, baseness, and worthlessness. These terms imply a lack of refined behavior or manners, and can be used to describe someone who is uncivilized, ungracious, or unrefined. Moreover, these antonyms may also refer to a work or action that lacks nobility or a sense of higher purpose, such as an immoral or unethical behavior. Thus, while nobleness embodies the qualities of honor, integrity, and goodness, its antonyms indicate the opposite and highlight the darker aspects of human nature.