1.Definition: characterized by an attitude of ready accessibility (especially about one's actions or purposes); without concealment; not secretive

Related Noun(s):nakedness

Category: General

2.Definition: willingness or readiness to receive (especially impressions or ideas)

Related Noun(s):receptiveness, receptivity

Category: General

3.Definition: without obstructions to passage or view

"The openness of the prairies"

Category: General