The term "brassbound" refers to something that is rigid, inflexible, or unyielding. An antonym for this word would be something that is flexible, pliable, or adaptable. "Less brassbound" could be synonymous with words like elastic, versatile, or malleable. These words imply that something is able to change or adjust to different situations, as opposed to being set in its ways. By using antonyms for "more brassbound," we can describe something that is receptive to new ideas, cooperative, and able to accommodate various views and perspectives. Additionally, using these antonyms allows for a more nuanced description of a person or thing, highlighting its dynamic and adaptable nature.