The Collaborative International Dictionary of English v.0.48:
noncolumned \noncolumned\ adj. (Arch.) not having columns. [Narrower terms: astylar; unpillared] columned Syn: uncolumned. [WordNet 1.5]WordNet (r) 3.0 (2006):
noncolumned adj 1: not having columns [syn: noncolumned, uncolumned] [ant: columned]