When it comes to describing a feeling of helplessness, there are several synonyms that can be used to express the same thing. One such word is "powerless," which implies a lack of ability to influence a situation or outcome. Another similar word is "vulnerable," suggesting a susceptibility to harm or danger without the means to defend oneself. "Incapable" can also be used to describe a sense of helplessness, indicating a lack of required skills or resources to achieve a desired goal. Other synonyms for "helpless" include "defenseless," "weak," "dependent," "submissive," and "at the mercy of." Ultimately, these words can help to convey a feeling of vulnerability and being unable to protect oneself.