Noun openness has 3 senses
  1. openness - without obstructions to passage or view; "the openness of the prairies"
    --1 is a kind of
    spacing, spatial arrangement
    --1 has particulars: patency
  2. openness - characterized by an attitude of ready accessibility (especially about one's actions or purposes); not secretive
    --2 is a kind of
    sociability, sociableness
    Antonyms: closeness, secretiveness
  3. receptiveness, receptivity, openness - willingness or readiness to receive (especially impressions or ideas); "he was testing the government's receptiveness to reform"; "this receptiveness is the key feature is oestral behavior, enabling natural mating to occur"; "their receptivity to the proposal"
    --3 is a kind of willingness
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