rec ‧ on ‧ dite /ˈrekəndaɪt, rɪˈkɒn- $ ˈrekən-, rɪˈkɑːn-/ BrE AmE adjective
[ Date: 1600-1700 ; Language: Latin ; Origin: reconditus , past participle of recondere 'to hide' ]
formal recondite facts or subjects are not known about or understood by many people SYN obscure