adikos

ἀδίκους. [4 verses](adj pl masc acc) "The unjust' is adikos, which means "wrongdoing", "unrighteous," unjust", "obstinate", "unmanageable", "unjust", "unrighteous [of things]," and "one who play unfairly."The negative prefix of "a" before a form of dikaios usually translaed as "righteous." -- The Greek word translated as "unjust" is from an adjective that means  "unrighteous," unjust", "obstinate", "unmanageable", "unjust", "unrighteous [of things]," and "one who play unfairly."   In modern terms, we would say "unfair". The noun form means "injustice".  In is the negative of the Greek word usually translated as "righteous," which has the sense of "virtue."