External
External adjective - Not being a vital part of or belonging to something.
Usage example: the defendant's socioeconomic status must be regarded as entirely external to his guilt or innocence
Outside is a synonym for external in outer topic. In some cases you can use "Outside" instead the word "External" as an adjective or a noun or a preposition, when it comes to topics like place, exterior. popular alternative
Outside
Outside adjective - Situated on the outside or farther out.
Usage example: slower moving vehicles should keep to the outside lane
External is a synonym for outside in place topic. You can use "External" instead the word "Outside" as an adjective or a noun, if it concerns topics such as outer, exterior, independent. popular alternative
Nearby Word: outsider
Mutual synonyms
Related pairs
Both words in one sentence
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The thing even has a core; instead of a big red glowy thingy on the outside of the body, it had a big blue glowy thingy under its external armor.
Source: Manga / Freezing -
External Combustion: The killers have left a sports car outside his apartment building in perfect condition.
Source: Film / Kiss Me Deadly -
Attack on Titan: Levi is emotionally cold and has no external sense of motivation or goals outside of survival.
Source: Hollywood Personality Disorders
Cite this Source
Outside and External. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/external/outside
External & Outside. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/external/outside>.
Outside or External. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/external/outside.
Google Ngram Viewer shows how "external" and "outside" have occurred on timeline