The word "infinite" means limitless, boundless, or endless. Its antonyms could be finite, limited, or bounded. Finite describes something that has an end, a limit or a definite number. Limited means restricted, confined, or restrained. Bounded refers to something that is confined or limited to a particular area or space. Other possible antonyms for infinite include small, tiny, or infinitesimal. In summary, words that convey the opposite of infinite can be used in various contexts and situations, such as when discussing time, space, or resources, to express boundaries or limitations.