The word dogmaticalness refers to a tendency to adhere rigidly to certain principles or beliefs, often without allowing for other perspectives or opinions. Synonyms for this word include inflexibility, intolerance, narrow-mindedness, rigidity, obstinacy, and stubbornness. These terms all describe a lack of openness to alternative viewpoints or to changing one's mind. Other related words include dogmatism, doctrinaire, positiveness, and authoritarianism. It's important to remain open to new ideas and to consider different perspectives, as dogmaticalness can lead to unhealthy conflict and prevent growth and progress. Being able to appreciate and understand alternative perspectives is a valuable trait for individuals and society as a whole.