been there (adjective) experienced: knowledgeable, knowing
Sinonime: bull's eye, center,
core, cynosure,
focal point,
headquarters*,
heart,
hub, limelight, locus, meeting place, nerve center, point of convergence, polestar,
seat,
spotlight, target
Antonime: green,
ignorant,
immature,
inexperienced,
unfamiliar, unknowledgeable, unseasoned,
unsophisticated