The word "un-restrictedly" indicates the absence of any limits, rules or constraints. Therefore, the antonyms for this word would be words that emphasize on limitations, boundaries, or rules. Some antonyms for un-restrictedly could be "restrictedly," "limitedly," "bound," "controlled," "constrained," "regimented," or "governed." These words are often used to describe situations or environments where there are rules, boundaries, or limits that must be followed. Whereas "un-restrictedly" implies that there are no restrictions or limits, these antonyms emphasize the presence of restrictions or limitations. Thus, the use of these antonyms is critical in providing an accurate description of the situation, event, or environment.