idiotism

Etymology

From idiot + -ism.

idiotism means very severe mental retardation. Lexicurio rates it Sui generis — a strength score of 90 out of 100.

noun

Very severe mental retardation.“He did not perceive that regal power, in a few generations, introduces idiotism into the noble stem […]”
A foolish utterance.“[…] that clear soprano, in nursery, rings out a shower of innocent idiotisms over the half-stripped baby, and suspends the bawl upon its lips.”
Idiom.
An overly literal translation of an idiom.