1. the quality or state of being extensive; the degree to which something covers a large area, range, or scope

Examples

• The extensiveness of the forest made it difficult to explore in a single day.
• The report impressed the committee with the extensiveness of its research and data.
• The extensiveness of her knowledge in multiple fields earned her respect as a scholar.
• We were amazed by the extensiveness of the museum's collection of ancient artifacts.
• The extensiveness of the damage from the hurricane required months of reconstruction.
• The extensiveness of the new highway system improved transportation across the region.