The word "most nonresistant" refers to someone who is extremely cooperative or yielding. Antonyms for this term would include words like assertive, resistant, or combative. Anyone who is not easily influenced, and is more likely to stand their ground, would be considered the opposite of someone who is most nonresistant. These opposites may be useful in certain situations, such as negotiations or conflicts, where cooperation and flexibility may be necessary. However, it is important to strike a balance between being too passive and too aggressive in order to achieve the best possible outcome. Ultimately, the selection of antonyms for most nonresistant will depend on the context and goals at hand.