sagacious

Possessing keen practical sense and mental discernment; shrewd.

serfdom

The state of being in servitude or bondage to an owner; slavery.

stereotype

A standardized image held by one group toward another, usually characterized by oversimplified conception, judgment, or belief. Stereotypical images are often used to evoke a unified reaction toward a group of a particular background, nationality, or ethnicity.

suasion

The act of attempting to persuade; synonymous with persuasion.