| verb | be a mystery or bewildering to “This beats me!” |
| verb | make more complicated “There was a new development that complicated the matter” |
| puzzle | noun | a particularly baffling problem that is said to have a correct solution |
| puzzlement | noun | confusion resulting from failure to understand |
| puzzler | noun | a particularly baffling problem that is said to have a correct solution |
| mystification | noun | something designed to mystify or bewilder |
| mystifier | noun | a particularly baffling problem that is said to have a correct solution |
| mystery | noun | something that baffles understanding and cannot be explained |
| bafflement | noun | confusion resulting from failure to understand |
| poser | noun | a particularly difficult or baffling question or problem |
| bewilderment | noun | confusion resulting from failure to understand |
| stupefaction | noun | a feeling of stupefied astonishment |
| complication | noun | any disease or disorder that occurs during the course of (or because of) another disease |