Source : Webster's Revised Unabridged Dictionary (1913)

Prudish \Prud"ish\, a.
   Like a prude; very formal, precise, or reserved; affectedly
   severe in virtue; as, a prudish woman; prudish manners.

         A formal lecture, spoke with prudish face. --Garrick.

Source : WordNet®

prudish
     adj : exaggeratedly proper; "my straitlaced Aunt Anna doesn't
           approve of my miniskirts" [syn: {priggish}, {prim}, {prissy},
            {puritanical}, {square-toed}, {straitlaced}, {strait-laced},
            {straightlaced}, {straight-laced}, {tight-laced}, {victorian}]