drawn-out vs lengthy

drawn-out and lengthy both are adjectives.

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

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

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

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

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