The word "cadaverousnesses" is quite complex and may not have many exact synonyms. However, the general sense of the word can be conveyed through similar terms such as "emaciation," "gauntness," or "haggardness." These words all describe a state of extreme thinness or emaciation that can be associated with illness or malnourishment. Other related terms include "pallor," which describes a lack of color or healthy flush in the skin, and "wastage," which suggests a gradual deterioration or wasting away of the body. While there may not be an exact synonym for "cadaverousnesses," these related terms can help convey a similar sense of physical and emotional strain.