"Nonlegal" refers to something that is not related to or regulated by the law. There are various synonyms for this word, such as "unlawful," "illegal," "extralegal," "non-judicial," and "outside the law." These terms indicate that something does not comply with legal provisions or regulations. Other synonyms for "nonlegal" include "informal," "unofficial," "unauthorized," "improper," and "unethical." However, it is important to note that some of these synonyms have slightly different meanings and nuances. It is necessary to choose the right word according to the context in which it is used to convey the intended meaning effectively.