describe vs delineate

describe is not an adjective while delineate is an adjective.

Word	Noun	Adjective	Verb	Adverb
describe	No	No	Yes	No
delineate	No	Yes	Yes	No

As verbs, delineate is a hyponym of describe; that is, delineate is a word with a more specific, narrower meaning than describe:

Other hyponyms of describe include represent, adumbrate, outline, sketch.

As verbs, describe and delineate are synonyms defined as:

Other synonyms of describe include draw, line, trace.

describe (adjective)	delineate (adjective)
	represented accurately or precisely

describe (verb)	delineate (verb)
identify as in botany or biology, for example	describe in vivid detail
give a description of	make a mark or lines on a surface
to give an account or representation of in words	trace the shape of
make a mark or lines on a surface	determine the essential quality of
	show the form or outline of