We don't have synonyms for goalball yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are goofball, coalball and coal ball.
(n) :
(disability, sports) A ball game, designed for the blind, in which teams of three players attempt to throw a ball with bells embedded in it into the opposing goal.
(n) :
(disability, sports) A ball game, designed for the blind, in which teams of three players attempt to throw a ball with bells embedded in it into the opposing goal.