hermetism

noun

her·​me·​tism ˈhər-mə-ˌti-zəm 

often capitalized

1

a

: a system of ideas based on hermetic teachings

b

: adherence to or practice of hermetic doctrine

2

: the practice of being hermetically mysterious

it is not … willful hermetism, if the message of their art is veiled and indirect

—R. J. Goldwater

hermetist

ˈhər-mə-tist 

noun

Word History

First Known Use

1897, in the meaning defined at sense 1a