What are the opposite words for last?

Antonyms for the word "last" include first, beginning, initial, earliest, introductory, opening, and start. These words are used to denote the opposite of last, which refers to the final or concluding element in a series or sequence. First refers to the initial or beginning element, while beginning refers to the start of something. Initial denotes the first step of a process, while earliest means the most primitive or ancient. Introductory refers to the beginning or starting point of a discussion or topic. Likewise, opening and start also refer to the initiation or beginning of a process, sequence, or event.