self-aggrandising vs boastful

self-aggrandising and boastful both are adjectives.

Word	Noun	Adjective	Verb	Adverb
self-aggrandising	No	Yes	No	No
boastful	No	Yes	No	No

As adjectives, self-aggrandising and boastful are synonyms defined as:

Other synonyms of self-aggrandising include big, braggart, bragging, braggy, cock-a-hoop, crowing, self-aggrandizing.

self-aggrandising (adjective)	boastful (adjective)
of or relating to or characteristic of self-aggrandizement	exhibiting self-importance
exhibiting self-importance