The term "most gestate" means to have the highest level of pregnancy or to carry one's baby for the longest period. There are several synonyms for "most gestate," including the phrases "most pregnant" and "most with child." Other synonyms for this term include "most gravid," "most heavy with child," and "most great with child." These descriptors are often used in the context of a woman who is expecting a baby, and they imply that she is carrying a child that has developed for a prolonged period of time. Overall, all of these phrases refer to a high degree of pregnancy and the advanced stages of carrying a child.