lowerableadj.
/ˈləʊ(ə)rəbl/, U.S. /ˈloʊ(ə)rəb(ə)l/ Able to be lowered.
ΘΚΠ
the world > movement > motion in a certain direction > downward motion > causing to come or go down > [adjective] > lowered > able to be
lowerable1863
rise-and-fall1885
1863 Morning Post 5 Dec. 6/5 A river craft of burden, with a tall strong mast, lowerable when passing under bridges.
1880 Judy 24 Nov. 252/1 An awful bunchiness at the back of the skirt, which has arisen from a desire on the wearer's part to lug about with her a lowerable train.
1905 Railway Master Mechanic Jan. 5/2 The grate is lowerable and adjustable, so that it can be cleaned quickly.
1980 Michigan Q. Rev. 19 526 The sleek convertible sedan with a lowerable top.
2011 Independent 19 Feb. 3/2 This nifty machine featured lowerable headlights and body-contoured bumpers.
This entry has been updated (OED Third Edition, September 2013; most recently modified version published online March 2022).
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adj.1863