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]The Collaborative International Dictionary of English v.0.48:
Unpillared \Unpillared\ See pillared.WordNet (r) 3.0 (2006):
unpillared adj 1: lacking pillars