Antonyms for the phrase "more pocket size" could include terms such as "oversized," "bulky," "unwieldy," "cumbersome," "clunky," "heavy," or "inconvenient." These words all suggest something that is too large or awkward to fit comfortably in a pocket or be easily carried around. In contrast, synonyms for "more pocket size" might include "compact," "portable," "lightweight," "handy," or "convenient," all of which convey the notion that something is small and convenient enough to carry around with ease. Overall, understanding antonyms and synonyms can help us more fully appreciate the nuances and subtleties of language, and choose the right words to communicate more effectively.