Prude vs. Prudent

A person who is excessively concerned with propriety or modesty, especially in sexual matters.

Careful or wise in handling practical matters; exercising good judgment or common sense

A person who is or tries to be excessively proper, especially one who is easily offended by matters of a sexual nature.

Characterized by or resulting from care or wisdom in practical matters or in planning for the future

Prudish.

Sagacious in adapting means to ends; circumspect in action, or in determining any line of conduct.

A woman of affected modesty, reserve, or coyness; one who is overscrupulous or sensitive; one who affects extraordinary prudence in conduct and speech.

Practically wise, judicious, shrewd.

A person excessively concerned about propriety and decorum

Frugal, economical.

Sagacious in adapting means to ends; circumspect in action, or in determining any line of conduct; practically wise; judicious; careful; discreet; sensible; - opposed to rash; as, a prudent man; dictated or directed by prudence or wise forethought; evincing prudence; as, prudent behavior.

Frugal; economical; not extravagant; as, a prudent woman; prudent expenditure of money.

Careful and sensible; marked by sound judgment;

Showing wise self-restraint in speech and behavior especially in preserving prudent silence;