Pariah1. (n.) An outcast; one despised by society; an untouchable.
2. (n.) One of an aboriginal people of Southern India, regarded by the four castes of the Hindus as of very low grade. They are usually the serfs of the Sudra agriculturalists.
Thesaurus Entries
DP, Diogenes, Hieronymian, Hieronymite, Ishmael, Timon of Athens, alien, anchoress, anchorite, ascetic, bedridden invalid, case, castaway, character, cloistered monk, closet cynic, crackpot, crank, declasse, derelict, desert fathers, desert saints, displaced person, eccentric, eremite, evictee, exile, expatriate, expellee, fanatic, hermit, hermitess, hobo, homebody, invalid, isolationist, kook, leper, lone wolf, loner, marabout, maverick, meshuggenah, natural, nonconformist, nut, odd fellow, oddball, oddity, original, outcast, outcast of society, outcaste, outlaw, outsider, persona non grata, pillar saint, pillarist, queer duck, queer fish, queer specimen, rara avis, recluse, screwball, seclusionist, shut-in, social outcast, solitaire, solitary, solitudinarian, stay-at-home, stylite, tramp, type, unacceptable person, undesirable, untouchable, zealot