IPA: /ˈspɔːrtɪvnəs/
KK: /ˈspɔrtɪvnəs/
The quality or state of being playful and full of energy, often associated with sports or physical activities.
The children's sportiveness was evident as they played games in the park.
Sportiveness → It is formed from "sport" (from Old French *desport*, meaning pastime or recreation) and "-ness" (meaning the state or quality of). The word "sportiveness" refers to the quality or state of being playful or full of sport.
Think of 'sport' as a fun activity and '-ness' as the quality of that fun — so sportiveness means the quality of being playful.