1. The finishing or accomplishment of a project, task, or work before the planned or expected deadline
The construction project achieved ahead of schedule completion by three weeks.
O projeto de construção alcançou conclusão antecipada em três semanas.
2. Finishing something earlier than originally scheduled or promised
Thanks to the team's efficiency, ahead of schedule completion was possible.
Graças à eficiência da equipe, a conclusão antecipada foi possível.