The word "more forceless" refers to something that is even weaker or less powerful than it already was. Some antonyms for this phrase could be "stronger," "more powerful," "more formidable," or "more influential." These words imply a greater degree of force, energy, or impact. Other antonyms might include "more resolute," "more determined," "more forceful," or "more vigorous." These words suggest a greater level of intensity or determination. Overall, the antonyms for "more forceless" all refer to qualities that are the opposite of weakness or frailty, emphasizing instead strength, power, and effectiveness.