The only error I can see in this sentence is roll-a-coaster. I believe it should be a roller coaster instead, which is a ride in amusement parks. Other than that, it is more grammatically correct to say "I've just gotten off the wooden" rather than "I just got off the wooden" however, it's up to you.
Answer:
A synonym would be...d eclined or refused
An antonym would be...approve or authorize
Explanation:
It meant war with Britain and America wouldn't have the support of Britain like it did as a colony.
