What is the opposite of capacious?

The term "capacious" refers to something that has a lot of space or is capable of holding a large amount. Therefore, its opposite would describe something that is limited in space or capacity. The word "constricted" effectively conveys this meaning, as it suggests something that is narrowed or restricted, thereby making it less spacious and less able to hold or accommodate.

In contrast, the other options either describe spaciousness or the absence of limits. "Spacious" indicates a lot of room, "limitless" implies an infinite capacity, and "vast" suggests an extensive area. None of these words encapsulate the idea of being confined or limited in capacity as "constricted" does. Thus, "constricted" stands out as the most fitting opposite of "capacious."