openness

noun

1.
without obstructions to passage or view
Derived from:
open
2.
characterized by an attitude of ready accessibility (especially about one's actions or purposes); without concealment; not secretive
nakedness
Antonym:
closeness
Derived from:
open
3.
willingness or readiness to receive (especially impressions or ideas)
freewardom open-minded receptiveness receptivity
Derived from:
open