Antonyms for the phrase "lays down arms" include words such as rises up, fights, resists, and opposes. These words suggest a sense of defiance and conflict, rather than surrender or peace. When someone chooses to rise up or fight, they are actively engaged in a struggle or opposition to something, rather than passively accepting defeat. The choice to resist indicates a willingness to continue fighting, despite the odds or potential consequences. The opposite of laying down arms is to hold onto them tightly and continue to use them as a means of defense or offense. Ultimately, the antonyms for the phrase suggest a sense of determination, passion, and unwillingness to give up, rather than a desire for resolution or peace.