PRIGGISH

adj. (ultra-)conservative, prim, demure, prudish, purist, puristic, pedantic, school-marmish, strait-laced, hidebound, stiff-necked, puritanical, conformist, (Mrs) Grundyish, punctilious, formal, formalistic, strict, severe, fastidious, fussy, particular; precious, précieux or précieuse, niminy-piminy, over-nice, Colloq stick-in-the-mud, goody-goody, prissy, old-maidish, stuffed-shirt, stuffy, uptight, nit-picking, Brit twee Victorians were less priggish in their private behaviour than in their public image