Foreign Definition

fôrĭn, fŏr-

adjective

Situated outside one's own country, province, locality, etc.

Foreign lands.

Webster's New World

Of, from, or characteristic of another country or countries.

Foreign languages.

Webster's New World

Having to do with the relations of one country to another country or countries.

Foreign affairs, foreign trade.

Webster's New World

Conducted or involved with other nations or governments; not domestic.

Foreign trade.

American Heritage

Not natural; alien.

Jealousy is foreign to her nature.

American Heritage

Synonyms:

Antonyms:

noun

(informal) Foreigner.

Wiktionary

Synonyms:

Other Word Forms of Foreign

Singular:

foreign

Plural:

foreigns

From Middle English forein, from Old French forain, from Vulgar Latin *forānus, from Latin forās (“outside, outdoors”), also spelled forīs (“outside, outdoors”). Displaced native Middle English elendish, ellendish (“foreign”) (from Old English elelendisc, compare Old English ellende (“foreign”), elland (“foreign land”)), Middle English eltheodi, eltheodish (“foreign”) (from Old English elþēodiġ, elþēodisc (“foreign”)), and non-native Middle English peregrin (“foreign”) (from Old French peregrin).

From Wiktionary
Middle English forein from Old French forain from Late Latin forānus on the outside from Latin forās outside dhwer- in Indo-European roots

From American Heritage Dictionary of the English Language, 5th Edition