nonjury adjective 1noun 1forms 1 adjective1 •Not a jury, or not involving a jury.The lead prosecutor, Michael F. Vecchione, strongly hinted of his inclination yesterday morning in remarks addressed to Justice Gustin L. Reichbach, who is presiding over the nonjury trial. — 2007 noun1 •A group of people other than a jury.I arbitrated complex employee grievance matters. I tried several cases before both juries and nonjuries in State and Federal courts throughout the country. — 1987 formsnonjuries