prolonged vs extended

prolonged and extended both are adjectives.

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

As adjectives, prolonged and extended are synonyms defined as:

Other synonyms of prolonged include elongated, lengthened.

As adjectives, prolonged and extended are synonyms defined as:

prolonged and extended: relatively long in duration; tediously protracted

Other synonyms of prolonged include drawn-out, lengthy, protracted.

prolonged (adjective)	extended (adjective)
drawn out or made longer spatially	fully extended or stretched forth
relatively long in duration; tediously protracted	beyond the literal or primary sense
	large in spatial extent or range or scope or quantity
	drawn out or made longer spatially
	relatively long in duration; tediously protracted