protracted vs drawn-out

protracted and drawn-out both are adjectives.

Word	Noun	Adjective	Verb	Adverb
protracted	No	Yes	No	No
drawn-out	No	Yes	No	No

As adjectives, protracted and drawn-out are synonyms defined as:

protracted and drawn-out: relatively long in duration; tediously protracted

Other synonyms of protracted include extended, lengthy, prolonged.

protracted (adjective)	drawn-out (adjective)
relatively long in duration; tediously protracted	relatively long in duration; tediously protracted
	(used of speech) uttered slowly with prolonged vowels