mistrial

/ˈmɪsˌtraɪəl/
noun
  1. A trial that is ended by a judge before a verdict is reached, usually because of a legal error, jury disagreement, or other serious problem.
    • A mistrial was called because a lawyer made an improper statement in court.
    • The defendant was relieved when the mistrial gave them a chance for a new trial.
    • The judge declared a mistrial after the jury could not agree on a verdict.