Words to Describe idiotism

How idiotism often is described ("________ idiotism")

• english
• hereditary
• stupid
• sleepy
• exquisite
• downright
• aged
• egregious
• rank
• real
• vacant
• drivelling
• perfect
• congenital
• helpless
• initial
• unfeeling
• greatest
• brainless
• complete
• incomplete
• absolute
• dread