What are the opposite words for 11th?

The 11th is a numerical term that refers to a position or an ordinal number. Its antonym, therefore, would be the first or the initial. Other antonyms for the 11th include "last," "final," "ultimate," and "concluding." Some other antonyms that can be associated with this word are "beginning," "introductory," "primary," or "preliminary." In a similar sense, we can use antonyms like "start," "commencement," or "inaugural" to describe an opposite meaning of the 11th. By understanding antonyms, we can also enhance our understanding of the context in which we use specific words and better express ourselves in conversation and writing.