potent Antonyms

impotent unremunerative tenancy thready timid unable uncapable unfruitful unsuccessful spiritless sisyphean motiveless otiose passive poor powerless purportless resultless sickly useless vain counterpotent counterproductive unproductive self-effacing self-defeating sub-par uneffective uninfluential to no purpose dysfunctional violable waterish watery weak unimportant unprofitable unavailing no-win mild meek light flimsy flat feminine female feeble etiolated diluted depolarization