Can i please have the paragraph to better help you answer your question?
Stubborn - annoying
inflexible - stiff
Answer:
The quotes about Mr. Birling suggests that he is proud about the Titanic. He thinks also thinks very highly of himself as you can see from his overly confident manner. He does not think well of other people, especially younger ones as you can see in the last quote. "The famous younger generation who know it all. And they can't even take a joke." He is a jokester and is offended when people don't get his jokes.
Explanation:
This is what i inferred from the quotes, idk if i'm right
I would say false let me kno if im wrong