— clandestinely , adv. — clandestineness, clandestinity , n.
/klan des"tin/ , adj.
characterized by, done in, or executed with secrecy or concealment, esp. for purposes of subversion or deception; private or surreptitious: Their clandestine meetings went undiscovered for two years.
[ 1560-70; clandestinus, equiv. to * clande, * clamde, var. of clam secretly (with -de adv. particle) + -stinus, prob. after intestinus internal; see INTESTINE ]
Syn . hidden, underhand, confidential, illicit.