Antonyms of the word "barbarianism" could include terms such as civilization, culture, refinement, sophistication, elegance, and advancement. These words refer to the opposite of barbarism, representing higher levels of development and progress in society. Culture and civilization denote a society's intellectual and artistic achievements, while refinement and sophistication suggest a high level of taste, manners, and etiquette. Elegance represents gracefulness and style, while advancement suggests progress and improvement. In summary, these antonyms illustrate the contrast between savagery and enlightenment, reflecting society's progress towards a more civilized and cultured future.