Frontier and Outside

Frontier

Frontier adjective - Located at or near a border.

Usage example: a frontier town with a reputation for vice and lawlessness

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Outside and frontier are semantically related. In some cases you can use "Outside" instead the word "Frontier" as a noun or an adjective.

Nearby Word: frontiersman

Outside adjective - Situated on the outside or farther out.

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Frontier and outside are semantically related. Sometimes you can use "Frontier" instead the word "Outside" as a noun or an adjective.

Nearby Word: outsider

full	full frontier	full outside
original	original frontier	original outside
true	true frontier	true outside
harsh	harsh frontier	harsh outside
Other adjectives: actual, entire, real, dangerous, galactic.

Likewise, frontier cultures outside of the protection or hindrance of The Government might maintain a similar, though less refined code out of survival necessity.

Source: Family Honor
Minus World: The "Lost Frontier" - a region outside the playable bounds of the game, which is accessible by putting in certain passwords.

Source: Video Game / The Guardian Legend
Settling the Frontier: Some mission briefings even state explicitly the city you're building is a colony to explore the countryside outside the current imperial border.

Source: Video Game / Emperor: Rise of the Middle Kingdom

Cite this Source

Outside and Frontier. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/frontier/outside

Frontier & Outside. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/frontier/outside>.

Outside or Frontier. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/frontier/outside.

Google Ngram Viewer shows how "frontier" and "outside" have occurred on timeline