exacting Synonyms

extortionate fastidious strict demanding exigent stern perfectionist selective severe squeamish strenuous stressful stringent scrupulous rigorous precise punctilious punctual punishing puristic puritanic ramrod rapacious religious requiring righting rigid superincumbent tough persnickety bloodsucking faultfinding nerve-wracking unpermissive pernickety picky choosy niggly money-grubbing supercritical labor-intensive sandbagging tall taxing testing tiring toilsome unsparing uphill wearying