unreinforced
adjective
un·re·in·forced ˌən-ˌrē-ən-ˈfȯrst 
: not reinforced
unreinforced masonry
unreinforced brick buildings
Example Sentences
Recent Examples on the Web In 1910, construction of the Rocky River Bridge, the longest, unreinforced concrete span in the world, also contributed to the increase of traffic. 
Carol Kovach, cleveland, 30 Aug. 2022 The action follows a Los Angeles Times report last year that found rioters exploited several unreinforced windows to enter the complex and attempt to stop certification of President Biden’s electoral victory. Los Angeles Times, 4 Jan. 2022 Engineers call them URMs (unreinforced masonry buildings). Sasha Warren, Scientific American, 24 June 2022 Those include: Moving beyond unreinforced masonry buildings to look at other unsafe structures. Courtney Tanner, The Salt Lake Tribune, 11 Feb. 2022 In Seattle, about one-third of all unreinforced-masonry buildings have been retrofitted. Bruce Barcott, Outside Online, 25 Aug. 2011 And, overall in the state, there are 140,000 unreinforced structures. Courtney Tanner, The Salt Lake Tribune, 11 Feb. 2022 In seconds, the unreinforced glass gave way in a single sheet. Sarah D. Wire, Los Angeles Times, 4 Oct. 2021 An unreinforced battalion usually includes around 50 armored vehicles and up to 400 soldiers. David Axe, Forbes, 28 Jan. 2022 See More
Carol Kovach, cleveland, 30 Aug. 2022 The action follows a Los Angeles Times report last year that found rioters exploited several unreinforced windows to enter the complex and attempt to stop certification of President Biden’s electoral victory. Los Angeles Times, 4 Jan. 2022 Engineers call them URMs (unreinforced masonry buildings). Sasha Warren, Scientific American, 24 June 2022 Those include: Moving beyond unreinforced masonry buildings to look at other unsafe structures. Courtney Tanner, The Salt Lake Tribune, 11 Feb. 2022 In Seattle, about one-third of all unreinforced-masonry buildings have been retrofitted. Bruce Barcott, Outside Online, 25 Aug. 2011 And, overall in the state, there are 140,000 unreinforced structures. Courtney Tanner, The Salt Lake Tribune, 11 Feb. 2022 In seconds, the unreinforced glass gave way in a single sheet. Sarah D. Wire, Los Angeles Times, 4 Oct. 2021 An unreinforced battalion usually includes around 50 armored vehicles and up to 400 soldiers. David Axe, Forbes, 28 Jan. 2022 See More Word History
First Known Use
1837, in the meaning defined above