openness

plural opennesses

1. uncountableusuallyUsed other than figuratively or idiomatically: see open, -ness.
2. uncountableusuallyAccommodating 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.

   Francis riled conservative cardinals with his compassion for migrants and refugees, openness towards LGBTQ+ Catholics and demands for action on the climate crisis.

   2025 May 8, Angela Giuffrida and Harriet Sherwood, “White smoke from Sistine Chapel chimney signals election of new pope”, in The Guardian, archived from the original on 11 Jun 2025

   1 more example

   Getting iced out by the tech giants turned Parler into a cause célèbre for conservatives who complained they were being censored, as well as a test case for the openness of the internet.

   2021 February 15, Jack Nicas, “Parler, a Social Network That Attracted Trump Fans, Returns Online”, in The New York Times, →ISSN, archived from the original on 19 Feb 2021

   Synonyms: open-mindedness, approachability

3. uncountableusuallyThe degree to which a person, group, organization, institution, or society exhibits this liberal attitude or opinion.
4. uncountableusuallyLack of secrecy; candour, transparency.

   "Instead of openness, there was the cunning tactics of cover-up and a complete failure by General De Chastelain to deal with the vital numerics of decommissioning," said Ian Paisley, 79, the Protestant preacher who heads the Democratic Unionists, Northern Ireland's largest party.

   2005 September 27, Brian Lavery, “I.R.A. Destroys What It Says Were the Last of Its Weapons”, in The New York Times, archived from the original on 07 May 2021

5. uncountableusuallycomputingThe 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.
6. uncountableusuallymathematicsThe 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.