I am not asking about a synonym
Google's result shows the meaning of pretentious as
attempting to impress by affecting greater importance, talent, culture, etc., than is actually possessed.
What would be the word to describe someone who attempts to impress by affecting greater importance, talent, culture, etc., but because he actually possesses it?
Is condescending or patronizing the right word here?
From the definition above, you could say conceited, vain or narcissistic
Condescending has a similar meaning but one out of those three given above fits your question better.
He puts on airs
He's full of himself
He's arrogant
Informal and modern:
He thinks he's all that
(He might also be a snob.)
How about the much under-used vainglorious
adjective: having or showing too much pride in your abilities or achievements
also Vainglory
noun: excessive elation or pride over one's own achievements, abilities, etc.; boastful vanity.
It does specify too much or excessive pride, but I think that might be the sense you are looking for.
