Antonyms of adj equipotent

1 sense of equipotent

Sense 1
equipotent -- (having equal strength or efficacy)

INDIRECT (VIA potent) -> impotent -- (lacking power or ability; "Technology without morality is barbarous; morality without technology is impotent"- Freeman J.Dyson; "felt impotent rage")

Similarity of adj equipotent

1 sense of equipotent

Sense 1
equipotent -- (having equal strength or efficacy)
       => potent (vs. impotent), strong, stiff -- (having a strong physiological or chemical effect; "a potent toxin"; "potent liquor"; "a potent cup of tea", "a stiff drink")