Alain Giresse scored the "disallowed" goal
It isn't. We are allowed to hunt.
Forbid, not allowed, prohibit or prevent.
"Disallowed" and "unallowed" are both correct terms and can be used interchangeably to describe something that is not permitted or not allowed.
Germany
Helmet-To-Helmet are not allowed. If that's what you were asking.
David Kelly scored the first goal for Ireland. It came after 21 minutes. David Platt scored what would have been England's first goal, but it was disallowed. The match was abandoned shortly after that due to a riot. So David Kelly's goal was the first and only goal of the match.
In the goal!
Each business, home, or school system has their own definition of what is allowed or disallowed on their computer systems. Many computer systems are set up with some sort of "parental" or security controls to block users from certain applications or websites.
the goal defence is allowed in the goal circle for the opposing team, the goal third for the opposing team and the centre third
three goals.
An antonym for the adjective allowed (permitted) would be prohibited, or disallowed. Other similar terms are banned and proscribed. As a past tense verb, the opposite of allowed would be prevented, stopped, precluded, or blocked.