adj. 25B6; adjective
her inscrutable face : ENIGMATIC, unreadable, mysterious; unexpressive, inexpressive, emotionless, unemotional, expressionless, impassive, blank, vacant, deadpan, poker-faced, dispassionate.
God's ways are inscrutable : MYSTERIOUS, inexplicable, unexplainable, incomprehensible, impenetrable, unfathomable, opaque, abstruse, arcane, obscure, cryptic.
expressive, transparent.