clearly erroneous standard
clearly-erroneous standard. The standard of review that an appellate court usu. applies in judging a trial court’s treatment of factual issues. • Under this standard, a judgment will be upheld unless the appellate court is left with the firm conviction that an error has been committed. [Cases: Appeal and Error 1008.1(5), 1009(1); Criminal Law 1158(1). C.J.S. Appeal and Error §§ 805, 810, 814–816.]