mediocracy

As a noun mediocracy

is (informal) a social hierarchy in which the mediocre prevails.

As an adjective undefined is

lacking a definition or value.

As nouns the difference between mediocracy and taxonomy

is that mediocracy is (informal) a social hierarchy in which the mediocre prevails while taxonomy is the science or the technique used to make a classification.

As nouns the difference between mediocracy and meritocracy

is that mediocracy is a social hierarchy in which the mediocre prevails while meritocracy is rule by merit, and talent. By extension, now often used to describe a type of society where wealth, income, and social status are assigned through competition.

As nouns the difference between mediocracy and mediacracy

is that mediocracy is (informal) a social hierarchy in which the mediocre prevails while mediacracy is rule by the media; a situation in which the media dominates or controls the populace.

As nouns the difference between mediocracy and mediocrity

is that mediocracy is a social hierarchy in which the mediocre prevails while mediocrity is the quality of being intermediate between two extremes; a mean.

As nouns the difference between idiocracy and mediocracy

is that idiocracy is government that is based upon abstract theory while mediocracy is a social hierarchy in which the mediocre prevails.

As a verb prevail

is to be superior in strength, dominance, influence or frequency; to have or gain the advantage over others; to have the upper hand; to outnumber others.

As a noun mediocracy is

a social hierarchy in which the mediocre prevails.

As an adjective mediocre

is mediocre (ordinary: not extraordinary; not special, exceptional, or great; of medium quality).

As a noun mediocracy is

(informal) a social hierarchy in which the mediocre prevails.