The antonyms for the word "noncitizen" are "citizen," "national," and "native." These words refer to individuals who have obtained citizenship, been born in a particular country, or are recognized by a government as a permanent resident. Citizenship is an important aspect of one's identity, as it grants an individual legal rights and protections, as well as access to certain government services and benefits. In some cases, noncitizens may face discrimination or limited opportunities due to their legal status. However, many countries have programs that allow noncitizens to earn permanent residency, citizenship, or other legal status over time, providing them with greater access to resources and opportunities.