Antonyms for the phrase "are supported" could include "are opposed" or "are hindered." Opposed suggests a statement of opposition or disagreement with a particular idea or action. Hinder, on the other hand, means to slow down or obstruct something, making it more difficult to achieve a goal or objective. In this sense, antonyms for "are supported" can often involve the idea of resistance or obstacles to progress. It is important to consider context when using antonyms, as they may be highly dependent on the specific situation in which they are being used.