portrayal vs delineation

portrayal and delineation both are nouns.

Word	Noun	Adjective	Verb	Adverb
portrayal	Yes	No	No	No
delineation	Yes	No	No	No

As nouns, portrayal and delineation are synonyms defined as:

Other synonyms of portrayal include depiction.

As nouns, delineation is a hypernym of portrayal; that is, delineation is a word with a broader meaning than portrayal:

Other hypernyms of portrayal include characterisation, characterization, depiction, picture, word-painting, word picture.

portrayal (noun)	delineation (noun)
representation by drawing or painting etc	representation by drawing or painting etc
acting the part of a character on stage; dramatically representing the character by speech and action and gesture	a drawing of the outlines of forms or objects
any likeness of a person, in any medium	a graphic or vivid verbal description
a representation by picture or portraiture
a word picture of a person's appearance and character