/prɪm; prɪm/
adj (-mmer, -mmest) (usu derog 通常作贬义)
1 (of a person) disliking anything that is improper, rude or rough; prudish （指人）循规蹈矩的, 拘谨的, 古板的, 假正经的
*You can't tell that joke to her she's much too prim and proper. 可别给她讲那样的笑话--她这人过于古板和认真.
2 stiffly formal in appearance, behaviour or manner （外观、行为或举止上）庄重的
*a prim little dress with a white collar 带有白色衣领的十分端庄的连衣裙.

adj
[Date: 1700-1800; Origin: Perhaps from Old French prin 'excellent, fine', from Latin primus; PRIME¹]
very formal and careful in the way you speak and behave, and easily shocked by anything rude
　She looked prim and nervous in her best hat and coat.
　a very prim and proper young lady
prim clothes are neat and formal
　a prim suit
>primlyadv