stickler Synonyms

hard taskmaster sphinx riddle rebus quibbler puzzle purist punctilious prude problem prig precisian poser perplexity perfectionist stumper teaser twister knotty question tough nut to crack fussbudget drill sergeant diehard picky pernickety nitpicker fusspot fuss-budget packrat thriller zealot tyrant pedant particular drillmaster dogmatist doctrinaire disciplinarian dictator despot cryptogram conundrum contender conscionable conformist carper bluenose bigot enforcer enigma