hidden (adjective) hidden: unseen, secret
Sinonime: accustomed,
acknowledged, allowed,
approved, arrived at, authorized, card-carrying,
chosen,
confirmed,
conventional, credited,
current,
customary, endorsed,
established,
fashionable, in vogue,
kosher*,
legit,
normal, okayed,
orthodox, passed,
popular,
preferred,
received, recognized,
regular, sanctioned,
standard,
straight*, time-honored, touted,
universal, unopposed,
usual, welcomed
Antonime: irregular,
questionable,
unconventional,
unorthodox