Arcane and Quietist

Arcane adjective - Difficult for one of ordinary knowledge or intelligence to understand.

Quietist and arcane are semantically related. In some cases you can replace term "Quietist" with "Arcane", this adjectives are similar.

Quietist noun - A religious mystic who follows quietism.

Arcane and quietist are semantically related. Sometimes you can use "Arcane" instead an adjective "Quietist".