Why would you want to encourage such a person? What you really want is for that person to go away...fast.
The Yiddish word for pretentious is "feygelekh."
The old man was a very pretentious fellow.
To get pretentious
pretend
pseud
Scientific rationalism encourage people to look at thing logicaly.
False
Pretentiously
I would describe it as pretentious gobbledygook.
She pretended she's someone else when she saw her ex.She was so pretentious during the party, everyone tried to avoid her.
pretentious person
Intellectually or socially pretentious.