impractical - not realistic; not workable or not provided to practical matters; "refloating the ship proved impractical due to cost"; "He's intelligent but as well impractical for professional work"; "an impractical Answer" Iteration by iteration, it gathers pieces of the puzzle until eventually new iterations yield only slight details. https://coingenius.news/ukrainian-ddos-attacks-should-put-us-on-notice-researchers/