Antonyms for the phrase "are subsequent to" refer to actions or events that are prior, preceding or earlier. These words represent a time frame that comes before the main event, act or occurrence. Examples of antonyms include "are prior to", "precede", "happen before", "come before", and "occur earlier than". The use of antonyms provides clarity and precision to language, which is essential in effective communication. By contrasting the meaning of a word or phrase with its opposite, we can convey a clearer message and avoid ambiguity. In summary, antonyms for "are subsequent to" involve actions or events that happens earlier in chronological order.