"Imbecile" as technical term, fit for legal writing:

July 13, 2014 2. PERVERSIONS OF SCIENCE In the 1927 case, known as Buck v. Bell, the Supreme Court found for the state, with only one dissent. Justice Oliver Wendell Holmes, writing for the majority, endorsed without reservation the eugenicists’ credo that the offspring of the mentally impaired were a menace to society. “It is better for the world,” he wrote, “if instead of waiting to execute degenerate offspring for crime, or to let them starve for their imbecility, society can prevent those who are manifestly unfit from continuing their kind. The principle that sustains compulsory vaccination is broad enough to cover cutting the Fallopian tubes. Three generations of imbeciles are enough.” All Excerpts From Wade, Nicholas. “A Troublesome Inheritance.” Penguin Group, USA, 2014-05-06. iBooks. This material may be protected by copyright.