Illegalized is a term that refers to an action or process of making something illegal. As such, antonyms for the word illegalized would be terms that describe actions or processes of making something legal, authorized or acceptable. Examples of such antonyms include authorized, permitted or legal. Other possible antonyms for illegalized include approved, sanctioned or recognized. These terms convey a sense of endorsement or validation for an action, idea or process, and are often used in opposition to illegal or unauthorized actions. Therefore, in contrast to illegalized, these antonyms suggest a sense of legitimacy or legality.