Definition

1. Noun:
   • Profound intellectual disability: A state of severe mental impairment, historically used in medical classification to describe a level of intellectual disability more severe than "moron" but less severe than "idiot."
   • Utter stupidity or foolishness: Extreme foolishness or senselessness in thought, action, or speech.

Usage Examples

• Noun:
  • The outdated medical text classified the condition as imbecility. (The outdated medical text classified the condition as a profound intellectual disability.)
  • His decision to drive during the hurricane was an act of sheer imbecility. (His decision to drive during the hurricane was an act of sheer foolishness.)

Advanced Usage

• Legal/Historical Context: The term was once used in legal and medical contexts but is now considered offensive and obsolete. Modern terminology uses specific levels of "intellectual disability" or "developmental disability."
  • The law's archaic language referred to "imbecility," a term no longer used in psychology. (The law's archaic language referred to a severe intellectual disability, a term no longer used in psychology.)

Variants and Related Words

• Imbecile (noun/adj): A person affected by severe intellectual disability (offensive); or, behaving with or showing great stupidity.
  • It is offensive to call someone an imbecile. (It is offensive to call someone a person with a profound intellectual disability/a very foolish person.)

Synonyms

• Foolishness: Lack of good sense or judgment.
• Stupidity: Behavior that shows a lack of good sense or intelligence.
• Idiocy (also offensive in medical contexts): Extreme stupidity.

Related Idioms/Phrases

• Sheer imbecility: Used to emphasize an action or idea as completely foolish.
  • The plan's failure was a result of sheer imbecility. (The plan's failure was a result of complete foolishness.)

Noun

1. a stupid mistake
2. retardation more severe than a moron but not as severe as an idiot