There are several synonyms for the word "non-restriction," which refers to the absence of constraints or limitations. Some of these synonyms include: freedom, liberation, independence, unconstrained, unbounded, unrestrained, uninhibited, and unfettered. These words convey a sense of total freedom and lack of limitations, whether in terms of personal behavior, creativity, or other areas of life. They can be helpful in communicating the idea of complete absence of control or regulation, and can be useful in writing or speaking about subjects relating to personal independence, growth, and exploration. Overall, these synonyms help to express the idea of living life without any limitations or boundaries, allowing for complete self-expression and fulfillment.