The quality of being helpful and encouraging to others.
Supportivenesses is a good thing because it means being kind and helping others.
Examples:
Her supportivenesses makes everyone feel better.
We should all show supportivenesses to our friends.
The supportivenesses of the teacher helps the students learn better.
The supportivenesses of the community makes it a nice place to live.
His supportivenesses is like a warm blanket on a cold day.
The supportivenesses of the team helps them win the game.