second cousin
Slightly similar or related to something else, while being noticeably different or unique. Usually followed by "to" or "of (something)." It's clear that, from design, power, and aesthetic, their new sports car is second cousin to the classic muscle cars of the 1950s.
second cousin
Something that is related or similar but not quite the same, as in This beef stew is second cousin to boeuf bourguignon. This expression transfers the literal sense of second cousin-that is, the child of the first cousin of one's mother or father-a usage dating from the mid-1600s.