There are several synonyms for the term "in captivity." Some common synonyms include "imprisoned," "confined," "detained," "incarcerated," and "restricted." These terms refer to situations where a living organism, whether it be a human, animal, or plant, is held against their will or prevented from moving or behaving freely. Other synonyms that can be used include "caged," "gaoled," "interned," "trapped," and "bound." While these terms describe similar ideas, they also carry slightly different connotations depending on the context in which they are used. Overall, the use of synonyms can provide a broader and more nuanced understanding of the concept of captivity.