1. having a long life; long-lived
Usage: formal; rare

Examples

• The longevous oak tree had stood in the village square for over three centuries.
• Some tortoises are remarkably longevous creatures, living well over a hundred years.
• The longevous tradition of storytelling continues to thrive in many cultures.
• Scientists study longevous species to understand the mechanisms of aging.
• The longevous dynasty ruled the kingdom for nearly five hundred years.