mistrial
noun /ˈmɪstraɪəl/
/ˈmɪstraɪəl/
(law- a trial that is not considered legally valid because of a mistake in the way it has been conducted
（诉讼程序错误的）无效审判 - (North American English) a trial in which the jury cannot reach a decision
（陪审团无法作出裁决的）未决审判