Percontative is an incredibly unusual word, and as such, there aren't many synonyms for it. Nonetheless, there are a few words that could be used to convey a similar meaning. For example, one could use "inquiring" to describe a person who is asking questions or seeking information. "Curious" could also be used for someone who is eager to learn or investigate. Additionally, "interrogative" refers to a question or query, which is similar to the meaning of "percontative." Finally, "inquisitive" could be used to describe someone who is interested in poking around or exploring to discover new information. While there may not be many synonyms for percontative, these options could prove useful for conveying a similar meaning.