half-built en · ADJ
Etymology
From half- + built.
Meanings
-
(not-comparable) Only partially built; not finished or completed.
In 1901 the Great Northern cancelled its agreement with the backers of the Big Tube, by which time the latter was half-built, and its big tunnels looked like a grandiose folly, since it would now not be allowed running rights into Finsbury Park main-line station.
2012, Andrew Martin, Underground Overground: A passenger's history of the Tube, Profile Books, →ISBN, page 122:North End station under Hampstead Heath was a half-built station that later became a Cold War bunker.
2021 June 30, Tim Dunn, “How we made... Secrets of the London Underground”, in RAIL, number 934, page 49: