: a game developed from soccer that is typically played indoors between two teams of five players each and whose object is to propel a round ball into the opponent's goal by kicking or by hitting it with any part of the body except the hands and arms
The Brazilian's background is in futsal, a fast-paced and high-skill indoor game … Joe Lyons
By harvesting rules from other indoor sports—basketball's team size, water polo's goalkeeping, handball's court dimensions—he edited the soccer rule book with just the right amount of tweaks, and futsal began to spread through YMCAs in South America like wildfire. Breanna Henry
Word History
Etymology
borrowed from Spanish futsal, shortened from fútbol sala or fútbol de salón "hall football"; or borrowed from Portuguese futsal, shortened from futebol de salão "hall football"