unarched
unarched
(ʌnˈɑːtʃt)adj
1. (Architecture) (of a structure) not arched; lacking arches
2. not formed in an arch
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014