Foreign body
Unknown and foreign body are semantically related. in person who is unfamiliar topic. In some cases you can use "Unknown" instead a noun phrase "Foreign body".
Unknown
Unknown noun - An unknown and unexplored region.
Foreign body and unknown are semantically related. Sometimes you can use "Foreign body" instead a noun "Unknown".
Nearby Words: unknowable, unknowing
Cite this Source
Unknown and Foreign body. (2016). Retrieved 2026, July 28, from https://thesaurus.plus/related/foreign_body/unknown
Foreign body & Unknown. N.p., 2016. Web. 28 Jul. 2026. <https://thesaurus.plus/related/foreign_body/unknown>.
Unknown or Foreign body. 2016. Accessed July 28, 2026. https://thesaurus.plus/related/foreign_body/unknown.
Google Ngram Viewer shows how "foreign body" and "unknown" have occurred on timeline