Ex*ten"sive (?), a. [L. extensivus: cf. F. extensif. See Extend.]
Having wide extent; of much superficial extent; expanded; large; broad; wide; comprehensive; as, an extensive farm; an extensive lake; an extensive sphere of operations; extensive benevolence; extensive greatness.
Capable of being extended.
Silver beaters choose the finest coin, as that which is most extensive under the hammer.
© Webster 1913.