hermetic
/hɜːrˈmetɪk/
complete and airtight; relating to ancient occult tradition
hermetic in a sentence
“The hermetic seal preserved the contents for centuries.”
Origin of hermetic
From Hermes Trismegistus, legendary ancient magician/deity
Related Words
sphinx-like
inscrutable, mysterious, and silent
monumental
massive in size, importance, or endurance
labyrinthine
irregular and twisting; highly intricate and confusing
cryptic
having a meaning that is mysterious or obscure
inscrutable
impossible to understand or interpret
hieroglyphic
difficult to decipher; enigmatic or symbolic