Thro
Unobstructed and thro are semantically related. In some cases you can use "Unobstructed" instead an adjective "Thro".
Unobstructed
Unobstructed adjective - Allowing passage without obstruction.
Thro and unobstructed are semantically related. Sometimes you can replace term "Thro" with "Unobstructed", this adjectives are similar.
Cite this Source
Unobstructed and Thro. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/thro/unobstructed
Thro & Unobstructed. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/thro/unobstructed>.
Unobstructed or Thro. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/thro/unobstructed.
Google Ngram Viewer shows how "thro" and "unobstructed" have occurred on timeline