Definify.com
Webster 1913 Edition
Extensiveness
Ex-ten′sive-ness
,Noun.
The state of being extensive; wideness; largeness; extent; diffusiveness.
Webster 1828 Edition
Extensiveness
EXTENS'IVENESS
,Noun.
1.
Extent; diffusiveness; as the extensiveness of a man's charities or benevolence.2.
Capacity of being extended. [Little used.]