1. (a.) Not belonging to the same country, land, or government, or to the citizens or subjects thereof; foreign; as, alien subjects, enemies, property, shores.
2. (a.) Wholly different in nature; foreign; adverse; inconsistent (with); incongruous; -- followed by from or sometimes by to; as, principles alien from our religion.
3. (n.) A foreigner; one owing allegiance, or belonging, to another country; a foreign-born resident of a country in which he does not possess the privileges of a citizen. Hence, a stranger. See Alienage.
4. (n.) One excluded from certain privileges; one alienated or estranged; as, aliens from God's mercies.
5. (v. t.) To alienate; to estrange; to transfer, as property or ownership.
Thesaurus Entries
Jim Crow, Martian, Uitlander, abalienate, adversary, adversative, adverse, alienate, alter, antagonistic, anti, antipathetic, antithetic, apart, apartheid, assign, astronaut, auslander, barbarian, barbaric, barbarous, case, cede, change, character, clashing, color bar, competitive, con, conflicting, contradictory, contrary, convert, convey, cosmonaut, counter, crackpot, crank, cross, deed, deracine, detached, disaccordant, disaffect, disconnected, discrete, disjunct, displaced person, disrelated, dissentient, dissociated, disunify, disunite, division, eccentric, emigre, enemy, ethnocentrism, exclusiveness, exile, exotic, exterior, external, exterrestrial, exterritorial, extragalactic, extralateral, extraliminal, extramundane, extramural, extraneous, extrapolar, extraprovincial, extrasolar, extraterrene, extraterrestrial, extraterritorial, extratribal, extrinsic, fanatic, foreign, foreign devil, foreign-born, foreigner, fractious, give up, gringo, hand over, hermit, hobo, hostile, immigrant, incommensurable, incomparable, incompatible, incongruous, inconsonant, independent, inimical, insular, insularity, insulation, intrusive, irrelative, isolated, isolation, know-nothingism, kook, lone wolf, loner, make over, man from Mars, maverick, meshuggenah, narrowness, natural, negative, newcomer, nonconformist, noncooperative, nut, obstinate, odd fellow, oddball, oddity, opponent, opposed, opposing, opposite, oppositional, oppositive, oppugnant, original, other, otherworldly, out-group, outcast, outland, outlander, outlandish, outlaw, outside, outsider, overthwart, pariah, parochialism, persona non grata, perverse, planetary colony, quarantine, queer duck, queer fish, queer specimen, race hatred, racial segregation, rara avis, recalcitrant, refractory, refugee, relinquish, remise, removed, repugnant, rival, rocket man, rocketeer, screwball, seclusion, segregate, segregation, separate, separated, separation, sign over, snobbishness, solitary, space, space crew, space traveler, spaceman, strange, stranger, the Wandering Jew, tightness, tramontane, tramp, transcendental, transmundane, type, ulterior, ultramontane, unaffiliated, unallied, unassociated, unconnected, uncooperative, unearthly, unfamiliar, unfavorable, unfriendly, unpropitious, unrelatable, unrelated, wanderer, wean, xenophobia, zealot
