Уточнение деталей вопроса
Match the opposite words. booming supporter significantly national
Ответ на вопрос
Booming — opposite word is «declining» or «shrinking». Booming refers to a period of rapid growth or success, so the opposite would be a period of decline or failure.
Supporter — opposite word is «opponent» or «critic». A supporter is someone who is in favor of something or someone, so the opposite would be someone who is against it or critical of it.
Significantly — opposite word is «insignificantly» or «minimally». Significantly means to a great extent or degree, so the opposite would be to a small extent or degree.
National — opposite word is «international» or «global». National refers to something that is specific to a particular country or nation, so the opposite would be something that is global or international in scope.