1) Apteral 2) Pseudoprostyle 
free standing columns that are widely spaced apart in a row. The term is often used as an adjective when referring to a portico which projects from the main structure.
building having columns only in the front
• (a.) Having columns in front. • (n.) A prostyle portico or building.
Pro'style adjective [ Latin prostylus , Greek ...; ... before + ... pillar, column: confer French prostyle .] (Architecture) Having columns in front. -- noun A prostyle portico or building. 
In architecture the term prostyle describes a portico or building as having columns in front.
[adj] - marked by columniation having free columns in a portico only across the opening to the structure
pseudoprostyle adjective marked by columniation having free columns in a portico only across the opening to the structure