| eerie(adjective, extraneous) | |
| estranged(adjective, experience, distant, different, unfamiliar) | |
| exogenous | |
| exoteric(adjective, outside) | |
| expatriate(experience, distant, different, unfamiliar, foreign) | |
| exteriority(noun, surface, skin, outside) | |
| extern | |
| extracurricular | |
| foreign-born(adjective, extraneous) | |
| general(slight, detail, union, trivial, universal) | |
| immaterial(adjective, extraneous) | |
| nonessential(adjective, extraneous) | |
| nonnative(experience, distant, different, unfamiliar, foreign) | |
| optional | |
| out of place(expression, idiom, mysterious, unknown, foreign) | |
| removed(adjective, extraneous) | |
| rind(surface, skin, outside) | |
| scientific | |
| shell(surface, skin, outside) | |
| skin(surface, outside) |
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| APA | Smart Define. (2015). external thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/external/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "external thesaurus" https://smartdefine.org/external/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2015, external thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/external/thesaurus/synonyms>. |
| MLA | Smart Define. "external thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/external/thesaurus/synonyms> |