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.

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