openness

From Middle English *opennesse, from Old English openness (“openness, publicity”), equivalent to open +‎ -ness. Cognate with Old High German offannussi (“disclosure, revelation, openness”).

openness (usually uncountable, plural opennesses)

1. Accommodating attitude or opinion, as in receptivity to new ideas, behaviors, cultures, peoples, environments, experiences, etc., different from the familiar, conventional, traditional, or one's own.
2. The degree to which a person, group, organization, institution, or society exhibits this liberal attitude or opinion.
3. Lack of secrecy; candour, transparency.
4. (computing, education) degree of accessibility to view, use, and modify in a shared environment with legal rights generally held in common and preventing proprietary restrictions on the right of others to continue viewing, using, modifying and sharing.
5. (systems theory) The degree to which a system operates with distinct boundaries across which exchange occurs capable of inducing change in the system while maintaining the boundaries themselves.

• (accommodating attitude or opinion): open-mindedness, approachability