1. 大惊小怪的；一本正经的；谨小慎微的
If you say that someone is prissy, you are critical of them because they are very easily shocked by anything rude or bad.

1. excessively fastidious and easily disgusted

e.g. too nice about his food to take to camp cooking
so squeamish he would only touch the toilet handle with his elbow

Synonym: daintyniceovernicesqueamish

2. exaggeratedly proper

e.g. my straitlaced Aunt Anna doesn't approve of my miniskirts

Synonym: priggishprimprudishpuritanicalsquare-toedstraitlacedstrait-lacedstraightlacedstraight-lacedtight-lacedvictorian