pre maturest (adjective) premature: earlier in occurrence than anticipated
Sinonime: aristocracy, beau monde, beautiful people, country set,
elite,
flower*, gentry, glitterati, haut monde, high society, jet set, main line, patriciate, polite society,
quality, smart set, top drawer, upper crust, who's who
Antonime: backward,
delayed,
late,
mature, overdue