extended vs extensive

extended and extensive both are adjectives.

Word	Noun	Adjective	Verb	Adverb
extended	No	Yes	No	No
extensive	No	Yes	No	No

As adjectives, extended and extensive are synonyms defined as:

extended and extensive: large in spatial extent or range or scope or quantity

extended (adjective)	extensive (adjective)
fully extended or stretched forth	of agriculture; increasing productivity by using large areas with minimal outlay and labor
beyond the literal or primary sense	broad in scope or content
large in spatial extent or range or scope or quantity	large in spatial extent or range or scope or quantity
drawn out or made longer spatially
relatively long in duration; tediously protracted