WordWeb Online

1. Of or relating to Puritans or Puritanism
    
2. Exaggeratedly proper
   "my puritanical Aunt Anna doesn't approve of my miniskirts";
   - priggish, prim, prissy, prudish, square-toed, straitlaced, strait-laced, straightlaced, straight-laced, tight-laced, victorian, bluenosed [US], uptight
    
3. Morally rigorous and strict
   "she was anything but puritanical in her behaviour";
   - blue, puritanic

See also: nonindulgent, proper, strict

Encyclopedia: Puritanical