Antonyms are words that are opposite in meaning to a particular term. The word "noxiousnesses" refers to the quality of being harmful, toxic, or offensive. The antonyms for this word would be words that describe something as beneficial, healthy, safe or pleasant. Examples of antonyms for "noxiousnesses" include "beneficence," "wholesomeness," "sanity," "virtue," "purity," "comfort," and "goodness." These words describe things that are pure, safe and healthy, and have no harmful impact on individuals, society, or the environment. Antonyms offer a contrasting perspective and are useful in communication to clarify and convey meaning accurately.