nolle prosequi nol·lep·ro·sequi uncommon noun (1) verb (1) noun 1. an entry in the court record to the effect that the plaintiff or prosecutor will not proceed Synonymsnolle prosequinol pros verb 1. declare that a legal case will not be prosecuted Synonymsnolle prosequinolle prosnol. pros. Related words Word family nolle prosequi Broader terms entryannounce WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.