a neglect or failure by the plaintiff to follow up his suit; a stopping of the suit; a renunciation or withdrawal of the cause by the plaintiff, either because he is satisfied that he can not support it, or upon the judge's expressing his opinion. a compulsory nonsuit is a nonsuit ordered by the court on the ground that the plaintiff on his own showing has not made out his case.-to determine, adjudge, or record (a plaintiff) as having dropped his suit, upon his withdrawal or failure to follow it up.-nonsuited.