The word superficialities refers to things that are shallow or lacking depth. Therefore, antonyms for this word would be words that are synonymous with depth, substance, or intensity. Some possible antonyms for superficialities include profundities, complexities, details, intricacies, nuances, profundities, or profoundness. When we encounter superficialities, we are often left feeling unsatisfied or unfulfilled, whereas when we experience their antonyms, we gain a deeper understanding and appreciation for something. In everyday conversations, using antonyms for superficialities can help us communicate more clearly and accurately and can convey a greater depth of meaning.