o ‧ pen ‧ ness /ˈəʊpənnəs, ˈəʊpənnɪs $ ˈoʊ-/ BrE AmE noun [uncountable]
[ Word Family: noun : the open, ↑ opener , ↑ opening , ↑ openness ; adjective : ↑ open , ↑ opening , ↑ unopened ; verb : ↑ open ; adverb : ↑ openly ]
1 . the quality of being honest and willing to talk about things
openness of
the openness of American society
openness about
her openness about her problems
2 . the quality of being willing to accept new ideas or people
openness to/towards
the importance of openness to change
3 . the quality of not being enclosed
openness of
the vast openness of the African plains