Definitions

from The Century Dictionary.

  • noun An idiom; a peculiarity of phrase; a current deviation or departure from the strict syntactical rules or usages of a language.
  • noun A personal peculiarity of expression.
  • noun Idiocy; the state of being an idiot.

from the GNU version of the Collaborative International Dictionary of English.

  • noun An idiom; a form, mode of expression, or signification, peculiar to a language.
  • noun Lack of knowledge or mental capacity; idiocy; foolishness.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun dated Very severe mental retardation.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

idiot +‎ -ism

Examples

Comments

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