IPA: //ˈfɛstɪvnəs//
KK: /ˈfɛstɪvnəs/
The quality or state of being cheerful and full of celebration, often associated with special occasions or events.
The festiveness of the holiday season brings joy to everyone.
Festiveness → It is formed from "festive" (from Latin *festivus*, meaning of a feast or festival) and "-ness" (meaning the state or quality of). The word "festiveness" refers to the quality or state of being festive or celebratory.
Think of the word 'festive' which relates to celebrations, and remember that 'festiveness' means the quality of being in a celebratory mood.