predeparture adjective 1noun 1forms 1 adjective1 •Occurring before or in preparation for one's departure.The Philippines requires each outbound migrant to attend a predeparture seminar. — 2007 noun1 •(rare) The time or preparations leading up to one's departure.Once conditioned, the odor can be used during graduated departures and predepartures as an OSS. — 2013 formspredepartures
