莫测高深 mòcègāoshēn unfathomable Origin Definitions Defs Strokes Stroke Words Sentences Sents 莫 mò adjective none (literary) nothing; no one; there is none who测 測 cè verbnoun to conjecture (bound form) to conjecture; to infer; to guess高深 gāoshēn profound (of learning, skill, or character) reaching a high level or great depth; advanced; recondite