WordNet sense 1 (exaggeratedly proper):

priggish, prim, prissy, prudish, puritanical, straitlaced, straightlaced, straight-laced, strait-laced, tight-laced, Victorian

WordNet sense 2 (marked by suitability or rightness or appropriateness):

proper

WordNet sense 3 (having a square toe):

squared-toe

WordNet sense 4 (having a toe or toes of a specified kind; often used in combination):

toe, toed