Albigensian, Catharist, Franciscan, Grundy, Sabbatarian, Trappist, Victorian, Waldensian, abstainer, anchorite, ascetic, austere, bhikshu, bigoted, bluenose, dervish, disapproving, dour, fakir, fanatic, firm, flagellant, fundamentalist, goody-goody, hard-line, hard-nosed, hard, hermit, hidebound, impliable, inexorable, inflexible, intolerant, iron, ironbound, ironclad, ironhanded, mendicant, mid-Victorian, moralistic, muscle-bound, narrow-minded, obdurate, obstinate, old maid, orthodox, pietist, pietistic, prig, prim, procrustean, proper, prude, prudish, purist, puristic, puritanic, puritanical, relentless, religionist, rigid, rigorist, rigoristic, rigorous, rockbound, sannyasi, severe, stern, stiff-necked, stiff, straightlaced, strait-laced, straitlaced, strict, stubborn, stuffy, unbending, uncompromising, unrelenting, unyielding, uptight, yogi, yogin, zealot