There are several synonyms for the word "limitary", which essentially means something that pertains to a limit or boundary. "Restrictive" is a commonly used synonym, indicating that something is limiting in nature. Another alternative is "confining", which implies being restricted or confined within a specific boundary. "Regulative" is another synonym that denotes something that sets and enforces limits or regulations. "Constraining" is also often used, suggesting that something is restrictive or oppressive. Lastly, "bounding" describes something that sets limits or boundaries, thus it could be used as a synonym for "limitary".