folly：释义

A lack of good sense, understanding, or foresight.

An act or instance of foolishness: regretted the follies of his youth.

A costly undertaking having an absurd or ruinous outcome.

An elaborate theatrical revue consisting of music, dance, and skits.

Obsolete Perilously or criminally foolish action.

Obsolete Evil; wickedness.

Obsolete Lewdness; lasciviousness.