Answer:
The answer is haughty.
Step-by-step explanation:
Arrogant and condescending people are the ones that most suffer for their pride due to their apparent superiority among people. Haughty is the synonym of both words.
The rest of the words does not make sense in this context. Disquietude is related to a state of anxiety, while blithe is similar to being happy or joyful, and obtuse is something or somebody often insensitive or slow to understand.