Foreign
Foreign adjective - Being, relating to, or characteristic of a country other than one's own.
Unknown is a synonym for foreign in unfamiliar topic. In some cases you can use "Unknown" instead an adjective "Foreign", when it comes to topics like behaviour, experience, alien, from another country.
Nearby Word: foreigner
Mutual synonyms
Both words in one sentence
-
In real life, people speaking a language that is foreign to them would probably lapse into their native tongue for the unfamiliar or unknown words, not "mister" and "captain".
Source: Literature / The Da Vinci Code - Allegedly a factor in the Russian revolution: because foreigners were supporting the white army, support grew for the red army, which wasn't influenced by unknown, foreign powers.
Source: Better the Devil You Know - This led to Mashima tweeting his confusion when foreign fans suddenly started wishing Lucy a happy birthday, and later reinforcing that Lucy's official birth date (at least in Japan) remains unknown.
Source: Word of Dante
Cite this Source
Unknown and Foreign. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/foreign/unknown
Foreign & Unknown. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/foreign/unknown>.
Unknown or Foreign. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/foreign/unknown.
Google Ngram Viewer shows how "foreign" and "unknown" have occurred on timeline