arahant

In the sramanic traditions of ancient India (most notably those of Mahavira and Gautama Buddha) arhat (Sanskrit) or arahant (Pali) signified a spiritual practitioner who had—to use an expression common in the tipitaka—"laid down the burden"—and realised the goal of nibbana, the culmination of the spiritual life (brahmacarya). Such a person, having removed all causes for future becoming, is not reborn after biological death into any samsaric realm.
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Arahant (Pali) [from the verbal root arh to be worthy; or from ari foe + the verbal root han to slay] The worthy one; enemy, slayer. One who has attained the highest state next to being a buddha, especially one who has freed himself from the asavas (Sanskrit asrava) -- intoxication or bewilderment of mind or sense. The term arahant, like the Sanskrit arhat, is often popularly used for individuals of less exalted grade. See also ARHAT; ARAHATTA