holocryptic

adj

holocryptic

adj

UK /ˌhɒl.əˈkɹɪp.tɪk/ · US /ˌhɑ.ləˈkɹɪp.tɪk/

Etymology From holo- + cryptic.

1

Wholly or completely concealing; incapable of being deciphered.

A holocryptic cipher is one constructed so as to offer no clue to its meaning to anybody without the key.
A holocryptic code

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.