Antonyms for the word "remaining firm" may include terms such as wavering, indecisive, flexible, vacillating, or pliant. Instead of staying steadfast and resolute, one who is wavering may be hesitant and hesitant to take action. Being indecisive means being unable to make a firm decision, leading to a lack of commitment or determination. Flexibility can refer to the ability to adapt and change course when necessary, which may be seen as the opposite of remaining firm. Vacillating refers to being uncertain or changing one's mind frequently, while pliant implies a willingness to bend or yield to external pressures.