The antonyms for the word "broadmindednesses" are narrow-mindedness, intolerance, prejudice, bigotry, and close-mindedness. Narrow-mindedness is the opposite of openness to new ideas and different perspectives. Intolerance suggests a lack of acceptance for differences, and often manifests as discrimination. Prejudice is a preconceived notion that can lead to unfair treatment of others. Bigotry is a strong bias towards a particular group or belief system. Close-mindedness refers to a resistance to change and a reluctance to explore new ideas. It is important to cultivate a sense of open-mindedness and acceptance to build a more inclusive and diverse society.