tunnel-like

tunnel-like

adj
resembling a tunnel or tunnels
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in classic literature ?
One of the shows of the place was a tunnel-like cavern, which had been hewn in the glacier.