高深莫测 (gāo shēn mò cè) | Meaning: profound mystery | Chinese Idiom with Pinyin & Origin

deep and unmeasurable (idiom); unfathomable depths · incomprehensible · enigmatic and impossible to predict深不可测shēn bù kě cè

mysterious · profound · abstruse玄妙xuán miào

enigmatic · beyond one's depth · unfathomable莫测高深mò cè gāo shēn

(idiom) to steadfastly refuse to discuss the matter; to treat it as an untouchable subject讳莫如深huì mò rú shēn

to remain puzzled after pondering over sth a hundred times (idiom) · to remain perplexed despite much thought百思不解bǎi sī bù jiě

profound mystery