egotistical vs vain

egotistical and vain both are adjectives.

Word	Noun	Adjective	Verb	Adverb
egotistical	No	Yes	No	No
vain	No	Yes	No	No

As adjectives, egotistical and vain are synonyms defined as:

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

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

egotistical (adjective)	vain (adjective)
characteristic of false pride; having an exaggerated sense of self-importance	characteristic of false pride; having an exaggerated sense of self-importance
characteristic of those having an inflated idea of their own importance	unproductive of success