extensive

extensive is an   Adverb

Definition:

[1] 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.

[2] Capable of being extended. [Obs.] Silver beaters choose the finest coin, as that which is most extensive under the hammer. Boyle.

Synonyms: