1. plural of chattiness; the quality or state of being chatty; tendency to talk a lot in a friendly, informal way
Usage: informal; usually uncountable in singular form, but plural form used to refer to multiple instances or types

Examples

• The chattinesses of the two friends made the long car ride enjoyable.
• Her natural chattiness put everyone at ease during the meeting.
• The chattinesses varied among the group members; some were reserved while others were outgoing.
• His chattiness was endearing, though sometimes exhausting.
• The chattinesses of social media users have created new forms of online communication.