Aberration >n. a departure from what is normal, usual, or expected, typically one that is unwelcome: they described the outbreak of violence in the area as an aberration.

Delineate >v. describe or portray (something) precisely: the law should delineate and prohibit behavior that is socially abhorrent.

Entente >n. a friendly understanding or informal alliance between states or factions: the growing entente between former opponents.

Nugatory >adj. of no value or importance: a nugatory and pointless observation.