High-handedly is a term that is often associated with arrogance and dictatorial behavior. Synonyms for high-handedly include autocratically, imperiously, domineeringly, overbearingly, and dictatorially. All of these words convey a sense of someone who is acting in a manner that is oppressive and controlling. Other possible synonyms for high-handedly include bossily, arrogantly, haughtily, and dictatorially. When someone is acting in a high-handed manner, they are often not willing to listen to the opinions of others and they may disregard the needs and wishes of those around them. It is important to recognize high-handed behavior and work to address it in a respectful and constructive way.