self-important vs chesty

self-important and chesty both are adjectives.

Word	Noun	Adjective	Verb	Adverb
self-important	No	Yes	No	No
chesty	No	Yes	No	No

As adjectives, self-important and chesty are synonyms defined as:

self-important and chesty: having or showing feelings of unwarranted importance out of overbearing pride

Other synonyms of self-important include arrogant.

self-important (adjective)	chesty (adjective)
having or showing feelings of unwarranted importance out of overbearing pride	having or showing feelings of unwarranted importance out of overbearing pride
	marked by a large or well-developed chest