Condescension and ostentatious

I want to know the difference between condescension and ostentatious.
Their meanings seem to be similar.I am confused a lot.Will you explain me clearly?
Thanks in advance

Hi. Their meanings are not very similar at all, actually.

Condescension is arrogant and disdainful treatment of others or treating them as inferiors generally. It is also the act of stooping to the level of perceived inferiors.

Ostentation is excessive showiness. It is not exclusive to what is visual.