There are multiple synonyms for the word "cheapnesses" that can be used in order to convey the same idea in a different way. Some similar words for "cheapnesses" include frugality, stinginess, thriftiness, miserliness, and economy. While all these words carry a similar connotation of being cost-effective, they can be used in different contexts to emphasize different aspects of being cheap. For example, "frugality" implies being thrifty and using resources judiciously whereas "stinginess" implies an unwillingness to spend money on anything. Understanding the nuances of these words and using them appropriately can enrich one's language and help communicate more effectively.