The opposite of "wast seated" could be several phrases, depending on the context. If the phrase refers to standing up, then the antonyms could be "stood up," "rose," or "elevated." If it pertains to lying down, then antonyms could be "reclined," "rested," or "lay down." Alternatively, if the phrase is referring to someone leaving, then antonyms could include "arrived," "entered," or "remained." In any case, the opposite of "wast seated" will depend on the context in which it is used.