searching

adjectives

diligent and thorough in inquiry or investigation
"a probing inquiry"; "a searching investigation of their past dealings"
having keenness and forcefulness and penetration in thought, expression, or intellect
"searching insights"; "trenchant criticism"
exploring thoroughly
is similar to
serving in or intended for exploration or discovery
"an exploratory operation"; "exploratory reconnaissance"; "digging an exploratory well in the Gulf of Mexico"; "exploratory talks between diplomats"