When describing something that is without specified limits, there are numerous synonyms that can be used depending on the context. One way to express this concept is to say that something is boundless or limitless. Alternatively, one might say that it is infinite or endless, suggesting that there is no point at which it will come to a stop. Another option is to describe something as unrestricted or unbounded, highlighting the lack of constraints or boundaries. Finally, a similar concept can be expressed by using words like free or open-ended, emphasizing the sense of possibility and lack of restriction. Ultimately, the choice of synonym will depend on the specific nuances of the context in which it is being used.