The term "more nonextant" implies that something is increasingly absent or disappearing. Antonyms for this phrase could include plentiful, prolific, thriving, flourishing, and abundant. These words suggest abundance, growth, and prosperity, indicating the opposite of the original phrase. Most of these antonyms evoke a sense of positivity, as each word implies that there is a considerable amount of something present or even thriving. With these antonyms, we can see that there are always opposing meanings to every word, allowing us to communicate and express ourselves more effectively. By using antonyms, we can emphasize the importance of language and its ability to convey different shades of meaning.