| desolate(adjective, strange, new, remote, mysterious) | |
| distant(adjective, strange, new, remote, mysterious) | |
| enigmatic | |
| exotic(adjective, strange, new, remote, mysterious) | |
| faceless | |
| far(adjective, strange, new, remote, mysterious) | |
| far-off(adjective, strange, new, remote, mysterious) | |
| faraway(adjective, strange, new, remote, mysterious) | |
| foreign(adjective, strange, new, remote, mysterious) | |
| hidden(adjective, strange, new, remote, mysterious) | |
| incalculable | |
| incog(adjective, strange, new, remote, mysterious) | |
| incognizable | |
| little-known | |
| little known(expression, adjective, strange, new, remote) | |
| not known(expression, adjective, idiom, secret) | |
| private | |
| pseudonymous(adjective, secret) | |
| puzzling | |
| remote(adjective, strange, new, mysterious, indefinite) |
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| APA | Smart Define. (2015). unidentified thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/unidentified/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "unidentified thesaurus" https://smartdefine.org/unidentified/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, unidentified thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/unidentified/thesaurus/synonyms>. |
| MLA | Smart Define. "unidentified thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/unidentified/thesaurus/synonyms> |