alien
WordReference English Thesaurus © 2026
Sense: Noun: foreign person
Synonyms:
foreigner Collocations, immigrant Collocations, nonnative, non-native, refugee, outsider Collocations, outlander, migrant, asylum seeker, displaced person, guest Collocations, visitor Collocations, foreign national, foreign person, foreign-born person, foreign citizen, noncitizen, illegal alien, illegal immigrant, illegal Collocations , migrant worker, gringo , gaijin , stranger Collocations, emigrant, DP
Antonyms:
Sense: Noun: extraterrestrial creature
Synonyms:
extraterrestrial, space creature, Martian, spaceman, creature from outer space, man from Mars, little green man, E.T., space monster
Sense: Adjective: foreign
Synonyms:
foreign Collocations, overseas, nonnative, non-native, exotic, foreign-born, immigrant Collocations, migrant, born overseas, from overseas, from abroad, from another country, from a foreign country, migrating, emigrating, emigrant, unnaturalized, unnaturalised
Antonyms:
Sense: Adjective: extraterrestrial
Synonyms:
extraterrestrial, space Collocations, Martian, from outer space, from space, from Mars, from another world, star Collocations, from beyond the stars
Sense: Adjective: unfamiliar
Synonyms:
unfamiliar, foreign Collocations, odd Collocations, strange Collocations, peculiar Collocations, bizarre Collocations, unknown Collocations, uncharted, unmapped, weird Collocations, hostile Collocations