Synonyms of alien

1 Syllable

dp, émigré, et

2 Syllables

strangers, foreign, expat, martians, martian, outer, ceded, unknown, ceding, blow-in, stranger

3 Syllables

newcomers, imported, hostile, incongruous, invader, opposed, conflicting, open-air, extraneous, immortals, alfresco, remoter, expellee, unusual, emigre, estrange, uncharted, estranged, outlandish, transmigrant, outlander, remote, remise, unfriendly, outsiders, outlanders, extrinsic, emigrant, outsider, refugee, exotic, invaders, newcomer, deportee, foreigners, remising, so-and-so, such-and-such, contrary, unmapped, estranging, external, remotest, incomer, outcomer, repugnant, resentful, marvellous, foreigner, immigrant

4 Syllables

extramural, romanesque, extralocal, nonnative, nonresident, non-resident, god-knows-where, separate, otherworldly, unfamiliar, exoteric, interloper, exogenous, latecomers, unexplained, interlopers, unperceived, latecomer, disconsonant, out-of-stater, intermeddler, unneighborly

5 Syllables

inappropriate, incompatible, abalienate, unconformable, unascertained, unapprehended

6 Syllables

uninvestigated, johnny-come-lately