vain vs self-conceited

vain and self-conceited both are adjectives.

Word	Noun	Adjective	Verb	Adverb
vain	No	Yes	No	No
self-conceited	No	Yes	No	No

As adjectives, vain and self-conceited are synonyms defined as:

vain and self-conceited: characteristic of false pride; having an exaggerated sense of self-importance

Other synonyms of vain include conceited, egotistic, egotistical, swollen-headed, swollen.

vain (adjective)	self-conceited (adjective)
characteristic of false pride; having an exaggerated sense of self-importance	characteristic of false pride; having an exaggerated sense of self-importance
unproductive of success