The word "seeingly" can be substituted with a plethora of synonyms depending on the context of use. Some words that can replace "seeingly" are ostensibly, apparently, supposedly, seemingly, evidently, manifestly, and visibly. Each of these synonyms implies that what is being observed is not necessarily the whole truth. For example, ostensibly suggests that the appearance of something is not necessarily its reality, while manifestly implies that the evidence clearly suggests something even if it is not explicitly stated. Whether in written or spoken language, the use of synonyms for "seeingly" can bring about a more nuanced and descriptive understanding of the observation being made.