"In-nocuousnesses" is a relatively uncommon word, and finding synonyms for it may prove to be a challenge. However, some possible options include the words harmlessness, insignificance, triviality, irrelevance, and innocuity. These words all convey a sense of lacking any negative or harmful effects, with a focus on the idea of being innocent or benign. While these synonyms do not share the exact meaning of "in-nocuousnesses," they do offer alternatives that may be more widely recognized and easier to incorporate into everyday communication. Ultimately, it is always helpful to have a range of vocabulary options to express our thoughts and ideas more effectively.