invalidated invalidated  /ɪn ˈvæ lə ˌdeɪ təd/


  • (adj) deprived of legal force


  1. In a 1973 decision that was never appealed, he invalidated Eckert and Mauchly's patents and in effect declared Atanasoff the winner.
  2. The impeachment proceedings were later invalidated by an appeals court judge in 1993, although that ruling was itself later vitiated by the Supreme Court.
  3. In practice, the Supreme Court has only invalidated 3 statutes on non-delegation grounds in its history, all 3 of which were invalidated in the mid-1930s.


  1. Court Lifts Prop 8 Stay, Letting Weddings Commence Immediately

    The Ninth Circuit has formally cleared the way for same-sex marriages, dissolving its stay of a lower court ruling that invalidated Prop 8.
    on June 29, 2013     Source:

  2. California same-sex marriage resumes

    Federal court lifts order that had had invalidated Proposition 8, letting gays tie the knot.
    on June 29, 2013     Source: U-T San Diego

  3. Teachers' group wants high-stakes test results invalidated

    The Oklahoma Education Association is calling for 2013 standardized tests to be invalidated after multiple computer snafus disrupted the April testing period.
    on June 26, 2013     Source: Tulsa World


  1. "Proposition 8 must be invalidated because the amendment process cannot be used to extinguish fundamental constitutional rights without compelling justification," Brown said in a written statement.
    on Dec 19, 2008 By: Jerry Brown Source: CNN

  2. "In the case that is before us ...... the lower courts need not have invalidated the law wholesale," O'Connor wrote. "Only a few applications of New Hampshire's parental notification statute would present a constitutional problem."
    on Jan 18, 2006 By: Sandra Day O Connor Source: Boston Globe (registration)

  3. "If the vote is invalidated, I'll step down immediately," Yar'Adua told AFP.
    on May 21, 2008 By: Yar Adua Source: Africasia

Word of the Day
animosity animosity
/ˌæ nə ˈmɑ sə ti /