1. containing information about many different subjects; comprehensive and wide-ranging in scope
2. having or showing extensive knowledge about many subjects

Examples

• The professor had an encyclopedic knowledge of European history.
• She wrote an encyclopedic guide to gardening that covered every topic imaginable.
• His encyclopedic memory impressed everyone at the trivia contest.
• The museum’s encyclopedic collection spans thousands of years of art.
• The reference book provides encyclopedic coverage of modern science.
• Her encyclopedic understanding of literature made her an excellent teacher.