PRUDISH
priggish, prim, prissy, prudish, puritanical, square-toed, straitlaced, strait-laced, straightlaced, straight-laced, tight-laced, victorian
(adjective) exaggeratedly proper; “my straitlaced Aunt Anna doesn’t approve of my miniskirts”
Source: WordNet® 3.1
Etymology
Adjective
prudish (comparative more prudish, superlative most prudish)
of excessive propriety; easily offended or shocked, especially by sexual matters
Source: Wiktionary
Prud"ish, a.
Definition: 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: Webster’s Unabridged Dictionary 1913 Edition