Borderline
Borderline adjective - Located at or near a border.
Open and borderline are semantically related. in inexact topic. In some cases you can use "Open" instead an adjective "Borderline".
Nearby Words: border, borderland
Open
Open adjective - Allowing passage without obstruction.
Borderline and open are semantically related. Sometimes you can use "Borderline" instead an adjective "Open".
Both words in one sentence
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It also contains a lot of open rural land due to it being a borderline country area.
Source: Useful Notes / Sydney - Borderline example in The Open Door, from the chorus of All that I'm Living For ("lock the last open door/my ghosts are gaining on me").
Source: Album Title Drop -
It goes to their teams too; Investigation Team's members take potshots at each other, more open about their secrets, and visibly laidback with it - while many of SEE's members are reserved, there's an air of professionalism between them, and even times where they're borderline hostile.
Cite this Source
Open and Borderline. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/borderline/open
Borderline & Open. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/borderline/open>.
Open or Borderline. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/borderline/open.
Google Ngram Viewer shows how "borderline" and "open" have occurred on timeline