The word "disectarians" is not a particularly common term, so synonyms for it may be difficult to find. However, depending on the context in which the term is being used, there may be a few alternatives. For example, if the term applies to a group of people who frequently dissect or analyze things (such as scientists or medical professionals), they could be referred to as "analysts," "investigators," or "examiners." If the term is intended to convey a more negative connotation (perhaps referring to someone who is overly critical or nitpicky), synonyms could include "critics," "judges," or "faultfinders." Ultimately, the best synonym for "disectarians" will depend heavily on the context in which it is being used.