prudish

Marked by or exhibiting the characteristics of a prude; priggish.

Having the character or manner of a prude; affecting extreme propriety of behavior; also, characteristic of a prude; prim.

Excessively formal or precise; rigid; stiff; severe.

Like a prude; very formal, precise, or reserved; affectedly severe in virtue.

Of excessive propriety; easily offended or shocked, especially by sexual matters.